EcoCalce Glaze

Transparent Lime Paint

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EcoCalce Glaze is a Transparent Limewash paint – a beautiful, non-chalking, glaze finish suitable to coat any of our Limewash or Potassium Silicate Paints for the Interior or Exterior. Apply this product with a brush, sponge, or rag and you can take up to four hours to perfect your final look.

This is a ROMABIO Organic BIO-Series Product.

Criteria Int. Standard Value Unit
TVOC & VOC (including tint pigments) 2004/42/CE 3.9 g/lt
Water Absorption Coefficient EN 1062-3 0.09 kg/(m²• √h)
Vapor Permeability DIN 52615-DIN 18550, EN ISO 7783-2 > 80 = Sd 0.08 g/m (24h)
pH Value DIN 19266 10 – 11
Natural Resistance to Mold UNI 9805 – UNI 10795
Specific Gravity (23°C) EN ISO 2811-2 1.1 g/ml
Granulation DIN 19643 < 0.01 mm
Gloss Level UNI EN ISO 2813 < 5 Very Flat
Natural Paint Lime Base NHL 3.5 DIN 18363 – UNI EN 459 10 %
Reaction to Fire EN 13501-1:2002 A 1 Incombustible
Toxicity CEE 88/379 Non-Toxic
APEO (Alkyl Phenol Ethoxylates) 0%
PEG (Polyethylene Glycol) 0%
PG (Propylene Glycol) 0%
Formaldehyde 0%
Biocides 0%

Does not contain chemicals that can aggravate or cause asthma, see NIH Asthma Report 2012.

Testing & Certification

Coming Soon...

We will have 3rd party testing for all of our products but please be patient as we are a growing company.

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1 Identification of the Substance/Mixture & 0f the Company/Undertaking

1.1 Product Identifier

Code     None
Product Name     BioCalce Glaze
Chemical Name & Synonym     Decorative Mineral Glaze

1.2 Relevant Identified Uses of the Substance or Mixture & Uses Advised Against

Intended Use     Decorative Mineral Glaze

1.3 Details of the supplier of the safety data sheet

  • Name     ROMA – Eco-Sustainable Building Technologies
  • Full Address     554 North Avenue NW, Suite B
  • District & Country Atlanta, GA 30318 | United States of America (USA)
  • 678-905-3700

1.4 Emergency Telephone Number

For Urgent Inquiries Refer To     Call 911 if you have a poison emergency.
Call the CDC if swallowed but person is alert 1-800-222-122

2 Hazards Identification

2.1 Classification of the Substance or Mixture

The product is classified as hazardous pursuant to the provisions set forth in Directives 67/548/EEC and 1999/45/EC and/or EC Regulation 1272/2008 (CLP) (and subsequent amendments and supplements). The product thus requires a safety data sheet that complies with the provisions of EC Regulation 1907/2006 and subsequent amendments.

Any additional information concerning the risks for health and/or the environment are given in sections 11 and 12 of this sheet.

  • Danger Symbols     Xi, C
  • R Phrases     35 – 37

The full wording of the Risk (R) and hazard (H) phrases is given in section 16 of the sheet.

2.2 Label elements

Hazard labeling pursuant to Directives 67/548/EEC and 1999/45/EC and subsequent amendments and supplements.


  • R36/38     Irritating to Eyes and Skin.
  • S1/2    Keep Locked Up and Out of the Reach of Children.
  • S26    In Case of Contact with Eyes, Rinse Immediately with Plenty of Water and Seek Medical Advice.
  • S36/37/39    Wear Suitable Protective Clothing, Gloves and Eye/Face Protection.
  • S45    In Case of Accident or if you Feel Unwell, Seek Medical Advice Immediately (Show the Label Where Possible).

2.3 Other Hazards


  • R35     Causes Severe Burns to Eyes.
  • R37     Irritating to Respiratory System.

3 Composition/Information on Ingredients

3.1 Substances

Information not relevant.

3.2 Mixtures

Identification Conc. % Class. 67/548/EEC Class. 1272/2008 (CLP)
CAS      – 21 – 22.5 Xi R38, Xi R41
EC        –
CAS   107-21-1 1.5 – 2 Xn R22
EC     603-027-00-1
CAS     34590-94-8 0.7 – 0.8 Substance with a Community Workplace Exposure Limit.
EC    252-104-2
INDEX     603-027-00-1

T+ = Very Toxic (T+), T = Toxic(T), Xn = Harmful (Xn), C = Corrosive (C), Xi = Irritant (Xi), O = Oxidizing (O), E = Explosive(E), F+ = Extremely Flammable(F+), F = Highly Flammable(F), N = Dangerous for the Environment (N)

The full wording of the Risk (R) and hazard (H) phrases is given in section 16 of the sheet.

First aid measures

4.1 Description of first aid measures

Nevertheless, observance of good industrial hygiene is recommended.

4.2 Most Important Symptoms & Effects, Both Acute & Delayed

No episodes of damage to health ascribable to the product have been reported.

4.3 Indication of Any Immediate Medical Attention & Special Treatment Needed

Information not available.

5 Firefighting measures

5.1 Extinguishing Media


The extinction equipment should be of the conventional kind: carbon dioxide, foam, powder and nebulized water.


None in particular.

5.2 Special hazards arising from the substance or mixture

Do not breathe combustion products (carbon oxide, toxic pyrolysis products, etc.).

5.3 Advice for firefighters


Use jets of water to cool the containers to prevent product decomposition and the development of substances potentially hazardous for health. Always wear full fire prevention gear. Collect extinguishing water to prevent it from draining into the sewer system. Dispose of contaminated water used for extinction and the remains of the fire according to applicable regulations.


Hardhat with visor, fireproof clothing (fireproof jacket and trousers with straps around arms, legs and waist), work gloves (fireproof, cut proof and antistatic), a depressurized mask with facemask covering the whole of the operator’s face or a self-respirator (self-protector) in the event of large quantities of fume.

6 Accidental Release Measures

6.1 Personal precautions, protective equipment & emergency procedures

Use breathing equipment if fumes or powders are released into the air.

6.2 Environmental precautions

The product must not penetrate the sewers, surface water, ground water and neighboring areas.

6.3 Methods & Material for Containment & Cleaning Up

Confine using earth or inert material. Collect as much material as possible and eliminate the rest using jets of water. Contaminated material should be disposed of in compliance with the provisions set forth in point 13.

6.4 Reference to other sections

Any information on personal protection and disposal is given in sections 8 and 13.

7 Handling & Storage

7.1 Precautions for Safe Handling

Store in closed, labeled containers.

7.2 Conditions for Safe Storage, Including Any Incompatibilities

Normal storage conditions without particular incompatibilities.

7.3 Specific End Use(s)

Information not available.

8 Exposure Controls/Personal Protection

8.1 Control Parameters

Name Type Country TWA/8h STEL/15min
mg/m3 ppm mg/m3 ppm
OEL EU 308 50 Skin
OEL IRL 50 100 Skin
WEL UK 50 Skin

8.2 Exposure controls

As the use of adequate technical equipment must always take priority over personal protection equipment, make sure that the workplace is well aired through effective local aspiration or bad air vent. If such operations do not make it possible to keep the concentration of the product below the permitted workplace exposure thresholds a suitable respiratory tract protection must be used. See product label for hazard details during use. Ask your chemical substance suppliers for advice when choosing personal protection equipment. Personal protection equipment must comply with the rules in force indicated below.


Protect hands with category III (ref. Directive 89/686/EEC and standard EN 374) work gloves, such as those in PVA, butyl, fluoroelastomer or equivalent. The following should be considered when choosing work glove material: degradation, breakage times and permeation. Work glove resistance to preparations should be checked before use, as it can be unpredictable. Gloves` limit depends on the duration of exposure.


Wear hood visor or protective visor together with airtight goggles (ref. Standard EN 166).


Wear category III professional long-sleeved overalls and safety footwear (ref. Directive 89/686/CEE and Standard EN 344). Wash body with soap and water after removing overalls.


If the threshold value for one or more of the substances present in the preparation for daily exposure in the workplace or to a fraction established by the company`s prevention and protection service is exceeded, wear a mask with an A or universal filter, the class (1, 2 or 3) of which must be chosen according to the limit concentration of use (ref. standard EN 141).

The use of breathing protection equipment, such as masks with organic vapour and dust/mist cartridges, is necessary in the absence of technical measures limiting worker exposure. The protection provided by masks is in any case limited.

If the substance in question is odourless or its olfactory threshold is higher than the relative exposure limit and in the event of an emergency, or when exposure levels are unknown or the concentration of oxygen in the workplace is less than 17% volume, wear self-contained, open-circuit compressed air breathing apparatus (ref. Standard EN 137) or fresh air hose breathing apparatus for use with full face mask, half mask or mouthpiece (ref. Standard EN 138).

An emergency eye washing and shower system must be provided.

9 Physical & Chemical Properties

9.1 Information on Basic Physical & Chemical Properties

Appearance Transparent liquid
Color Transparent
Odor Characteristic
Odor Threshold
pH 12 – 12.5
Melting or Freezing Point
Boiling Point
Distillation Range
Flash Point > 61°C
Evaporation Rate
Flammability of Solids & Gases
Lower Inflammability Limit
Upper Explosive Limit
Lower Explosive Limit
Vapor Pressure
Vapor Density
Specific Gravity 1,100 Kg/l
Solubility Water
Partition Coefficient: Octanol/Water
Ignition Temperature
Decomposition Temperature
Reactive Properties

9.2 Other information

VOC (Directive 2004/42/EC) 0.54% – 5.85% g/lt
VOC (Volatile Carbon)

10 Stability & Reactivity

10.1 Reactivity

There are no particular risks of reaction with other substances in normal conditions of use.

10.2 Chemical Stability

The product is stable in normal conditions of use and storage.

10.3 Possibility of Hazardous Reactions

No hazardous reactions are foreseeable in normal conditions of use and storage.

10.4 Conditions to Avoid

None in particular, however the usual precautions used for chemical products should be respected.

10.5 Incompatible Materials

Information not available.

10.6 Hazardous Decomposition Products

In the event of thermal decomposition or fire, vapors potentially dangerous to health may be released.

11 Toxicological information

11.1 Information on Toxicological Effects

Acute Effects: contact with skin may cause: irritation, erythema, edema, dryness and chapped skin. Vapour inhalation may slightly irritate the upper respiratory trait. Ingestion may cause health disorders, including stomach pain and sting, nausea and sickness.

This product may cause serious ocular lesions, cornea opacity, iris lesions, irreversible eye coloration.

12 Ecological Information

Use this product according to good working practices. Avoid littering. Inform the competent authorities, should the product reach waterways or sewers or contaminate soil or vegetation.

12.1 Toxicity

Information not available.

12.2 Persistence & Degradability

Information not available.

12.3 Bioaccumulative Potential

Information not available.

12.4 Mobility in soil

Information not available.

12.5 Results of PBT & vPvB assessment

Information not available.

12.6 Other Adverse Effects

Information not available.

13 Disposal considerations

13.1 Waste treatment methods

Reuse, when possible. Product residues should be considered special hazardous waste. The hazard level of waste containing this product should be evaluated according to applicable regulations.

Disposal must be performed through an authorized waste management firm, in compliance with national and local regulations.


Contaminated packaging must be recovered or disposed of in compliance with national waste management regulations.

14 Transport information

The product is not dangerous under current provisions of the Code of International Carriage of Dangerous Goods by Road (ADR) and by Rail (RID), of the International Maritime Dangerous Goods Code (IMDG), and of the International Air Transport Association (IATA) regulations.

15 Regulatory information

15.1 Safety, health & environmental regulations/legislation specific for the substance or mixture

Seveso Category     None






Workers exposed to this chemical agent must not undergo health checks, provided that available risk-assessment data prove that the
risks related to the workers’ health and safety are modest and that the 98/24/EC directive is respected.


Exterior walls of mineral substrate.
VOC given in g/litre of product in a ready-to-use condition

  • Limit Value     200.00 (2010)
  • VOC of Product     5.85

15.2 Chemical safety assessment

No chemical safety assessment has been processed for the mixture and the substances it contains.

16 Other information

Text of hazard (H) indications mentioned in section 2-3 of the sheet

  • R22     Harmful if Swallowed.
  • R38     Irritating to Skin.
  • R41     Risk of Serious Damage to Eyes.


  1. Directive 1999/45/EC and following amendments
  2. Directive 67/548/EEC and following amendments and adjustments
  3. Regulation (EC) 1907/2006 (REACH) of the European Parliament
  4. Regulation (EC) 1272/2008 (CLP) of the European Parliament
  5. Regulation (EC) 790/2009 (I Atp. CLP) of the European Parliament
  6. Regulation (EC) 453/2010 of the European Parliament
  7. The Merck Index. – 10th Edition
  8. Handling Chemical Safety
  9. Niosh – Registry of Toxic Effects of Chemical Substances
  10. INRS – Fiche Toxicology (toxicological sheet)
  11. Patty – Industrial Hygiene & Toxicology
  12. N.I. Sax – Dangerous properties of Industrial Materials-7, 1989 Edition

Note For Users

The information contained in the present sheet are based on our own knowledge on the date of the last version. Users must verify the suitability & thoroughness of provided information according to each specific use of the product.

This document must not be regarded as a guarantee on any specific product property.

The use of this product is not subject to our direct control; therefore, users must, under their own responsibility, comply with the current health & safety laws & regulations. The producer is relieved from any liability arising from improper uses.


Fields of Application

A transparent decorative finish paint with made with a high quantity of lime putty, formulated for masonry or portland cement bases, for interior-exterior walls and surfaces, for sheetrock, wood, stone, brick, portland cement stucco, cementitious board, and NHL 3.5 and 5.0 stucco mortars. BioCalce Glaze, known as Velatura Mineral (mineral veil), is a very refined, highly specialized lime wash paint that can be applied multiple surfaces to provide a transparent chalk paint finish with the ancient capabilities to carbonize to masonry surfaces providing decades of durability, withstanding most climatic conditions and not capitulate to environmental stress. BioCalce Glaze has been formulated to form a slow set and permit high dilutions with water. This lime wash is ideal for application on lime paints BioCalce Classico, BioCalce A, BioCalce S, BioCement GF and GM, BioMarmorino, smooth, semi-smooth, rough cement walls, exposed brick, and wood. This product is ideal for antique patinas, with transparent/opaque effects. This is an ancient lime paint product originating from the early Italian Renaissance. A non-acrylic paint product.

BioCalce Glaze can be manipulated by water dilution and applied with glaze techniques or by brush.

This paint product is not oil proof, and can be damaged by foods, greases, body oils, color crayons or washable colored markers. Cleaning may damage or change the sheen of the paint.

BioCalce Glaze can be used as finish paint for brick, stone, stucco, lime plaster finishes and most wood products.

Product Features

BioCalce Glaze is a high quality lime paint ideal for highly individualized artistic and historical applications. Product is derived from Acqua San Giovanni. Acqua San Giovanni is a pure mineral release gathered from surface water in lime pits during slaking periods. BioCalce Glaze when applied to natural lime plasters or products, color tinted, used in multiple dilutions with water, offers unlimited options to create transparent color veils, or color hazes, when applied with a brushes, sponges, rags, or in multiple combination. Product can be applied to certain types of virgin woods and can lightly change or alter natural colors of wood, offering one-of-a-kind staining, atypical of BioCalce Classico, BioCalce A, and BioCalce S.

BioCalce Glaze is slow set lime paint, that even when dried, can be manipulated as desired as long as the final technique is completed within a maximum 4 hour time period. Acquires maximum durability when applied on exterior natural masonry surfaces (non-painted surfaces with acrylic paints), for durations of approximately 10 – 20 plus years. No guarantee can be provided for all previously painted surfaces that have been painted with an acrylic or oil based paint.

A 91.5% natural mineral product, permeable, breathable, absorbs CO2, provides good anchoring power with mineral surfaces by carbonization. Provides protection against the formation of bacteria that forms mold. Product is considered an organic product, ideal for use in homes, schools, and hospitals and work sensitive areas.

BioCalce Glaze is specifically designed to be tinted with natural oxide earth tints and 0% VOC colorants to increase esthetic color values with minimal impact to the environment and to provide toxic free air quality for indoors. BioCalce Glaze is an organic paint material as described in the Bio Category description.

Aesthetic features are extreme flatness, high mineral content, creating unique light refraction capabilities and uncommon luminosity.

Type of Product

Slaked lime coating according to UNI 8681 with 8.5% organic stabilizer. No acrylic binders used.

Sheen Finish

Very Flat


White Base. Color tint up to 8% max with approved tints. Custom color tint matching is available.

Application Cycle Instructions

Brush Applications

1ST COAT     Dilute BioCalce Glaze typically with 100% water, 15 liters of water per one (1) 15-liter bucket to 200% dilution, 30 liters of water per one (1) 15-liter bucket. Minimum dilution should not be below 50% dilution with water. For brick or stucco it is suggested to dampen previously all masonry surfaces with water thoroughly, so as to assist lime wash paints to absorb deeper into the masonry surface. Do not apply paint to overly wet surfaces. Allow 1st coat to dry for at least 2 – 8 hours, or until at least visibly dry, before applying 2nd coat. Brush application required for all coats. Using several types of brush sizes and types and painting by hand will create the best results. Typical application is spot painting, and not in smooth, uniform strokes. Painting with a brush in a crisscross pattern will help create very slight natural chromatic finishes. BioCalce Glaze can be applied to non-acrylic painted natural mineral surfaces such as stone, brick, stucco, lime plasters and lime paints, without the use of a primer. For interior or exterior applications where the base to be painted is a non-mineral surface (i.e., acrylic paint, sheetrock), apply 1 coat of BioGrip Micro or Medium, and allow to dry for 8 – 12 hours prior to application of 1st and/or 2nd coat of BioCalce lime paints. Allow base coat lime paint applications to dry for 8 – 12 hours before proceeding with applications of BioCalce Glaze. For applications on virgin wood surfaces, applications can be performed without primers or lime paints. See BioCalce S for semi-transparent lime wash finishes, to understand how to incorporate transparent and semi-transparent lime finishes.

2ND COAT     Apply BioCalce Glaze diluted with 100% water, 15 liters of water per one (1) 15-liter bucket to 200% dilution, 30 liters of water per one (1) 15-liter bucket. Apply with brush alternating brush stroke patterns, and for best results, alternate color tinting of BioCalce Glaze, using BioEarth Pigment hand tints, to adjust color hues by 10% – 30%, for each coat application. Painting with a brush in a crisscross pattern will create a very slight natural chromatic finish. Allow 2nd coat to dry for at least 1 – 4 hours before applying a 3rd coat.

3RD COAT     Continue applications of BioCalce Glaze until a satisfactory color and wash effect have provided depth and dimension to treated surfaces.

Roller Applications

This product should not be applied with a roller.

Paint Sprayers

This product is untested for use with a sprayer.

GRAIN SIZE     0.01 mm

Mixing Paint & Water

Most of our paint formulas are concentrated and require water to be added to them for proper use. This process means we can sell more coverage in an economical package that decreases the cost for transport, reduces the carbon footprint, helping the your pocket book and the environment.

Mix paint and water with an electric drill and paint paddle, or mix well by hand! If water is sitting on the top of your mixture, the paint is not properly mixed!


Apply with brush, sponge or rag.

Drying Time

Allow a drying time between successive coats of upon visual drying of any previous coats. Aggressive removal with water and rags or sponges should not occur between coats except after 8 – 12 hours. With lower temperature and humidity more time may be needed.

Do not apply BioCalce Glaze on the exterior if there is a risk of thunderstorms or showers during the 12-hour drying time needed for product to dry and carbonize correctly.


Approximately 500 ft2 – 1,000 ft2 / 45 mt2 – 93 mt2 per 1 liter consumption, depending on absorption and type of base. Determine exact consumption by performing a test on the surface to be treated.


Plastic buckets of 1, 5 and 15 liters.

Application Cycles on Different Types of Bases

Make sure base is solid, dry and well cleaned, prepared with skill. It is recommended to observe the rule VOB DIN 18 363, Part C, paragraph 3.

New Sheetrock

Apply 1 coat of BioDomus SuperFlat and allow to dry for 8 – 12 hours. Apply 1 coat of BioGrip Micro or Medium with brush or roller and allow to dry for 8 – 12 hours. Apply BioCalce A according to instructions. For walls that have been over-sprayed with Semi-gloss or Gloss paints, oil or latex, BioGrip Micro should be applied as first coat to overspray areas prior to application of BioDomus SuperFlat or BioCalce A. With oil paint over-sprays on new sheetrock, attention must be made to verify that oil products do not bleed through mineral paint primers or paints. Tests should be done on over-sprays prior to wall application system to verify stable coverage. Apply BioCalce Glaze according to instructions indicated above.

BioCalce Glaze can be applied to all types of mineral paint bases, including BioDomus SuperFlat, EcoDomus Matte, BioDomus I and II, BioGrip Micro and Medium, BioCalce Classico, A and S. In addition BioCalce Glaze can be applied to any type of mineral plaster including, BioCement GF and GM, BioMarmorino and Grassello Bios.

Painted Sheetrock

Apply 1 coat of BioGrip Micro or Medium and allow to dry for 8 – 12 hours. Apply BioGrip Micro diluted 40% with water, 6 liters water to one (1) 15-liter bucket. BioGrip may be tinted for light and medium colors. BioCalce Glaze may be directly applied onto BioGrip or any type of mineral based paint or plaster as indicated section NEW SHEETROCK.

Unpainted Wood

BioCalce Glaze can be used as a historical and decorative finish on new or reclaimed wooden beams, wood trim, wood ceilings, and even wood floor staining applications. Application of BioCalce Glaze on wood should not be used on exterior surfaces that are exposed to rain or water without the use of an approved exterior sealer, as this may result in the removal of the lime wash or cause the tannins or resins in many woods to discolor the patina.


Dilute BioCalce Glaze lime wash at 100% and apply with a brush. Test product before application to verify dilution, finish and technique to create the desired result. For oak or pine species of wood, careful attention must be given to assure that moisture from the lime wash will not release undesirable discoloration from tannins or resins. Allow product to visibly dry and then removes with water and rag and/or sponge as needed, allowing to visibly dry between removals to verify finish. On wood one can lightly sand or steel wool if desired. Additional coats or color hues of BioCalce Glaze can be applied, using full coverage or spot painting, or wiping as desired to develop final finish. Sealing is not required for interior finishes.


If problems arise from discoloration due to resins or tannins, it is suggested to test sealing the beams with EcoCer Varnish Matte diluted at 100% to reduce this affect, or apply an alcohol based shellac or approved white base primer with stain blocking capabilities. Perform tests on wood samples to determine adhesion of BioCalce Glaze onto clear sealers, and any white base primer/sealers should be painted with a ROMA mineral paint before application of BioCalce Glaze.


To consolidate BioCalce Glaze permanently to wood, unlike BioCalce Classico, it is not required to seal with TerraMare Velatura. EcoCer Varnishes can be applied directly onto BioCalce Glaze without a sealer, if BioCalce Glaze is the only finish product on wood. If BioCalce S is applied onto BioCalce Classico, or BioCalce A, apply TerraMare Velatura, diluted at 300% – 500% with water and apply with brush on wood surface, then removing quickly, lightly but deliberately, all excess diluted material with a soft damp rag. TerraMare Velatura is an absolute requirement for lime wash finishes if varnish is desired to be applied as a final finish coat on lime wash finishes.


EcoCer Varnish can be applied directly onto BioCalce Glaze. EcoCer Varnishes can be applied on properly prepared lime washes, but only when the lime washes have been thinly applied. Thickly applied lime washes cannot be treated with varnish as a final coat. For applications on lime paint surfaces, dilute EcoCer Varnish Matte or Satin for 1st coat, 40% – 100% with water, 4 liters – 10 liters of water to one (1) 10-liter bucket of product. Apply to finished surface by brush and allow to dry for 4 – 8 hours. For floor or cabinet applications dilute the 2nd coat of EcoCer Varnish, 40% with water (if a higher dilution of water was used initially), then 20% with water, 2 liters of water to one (1) 10-liter bucket of product. Apply to finished surface by brush and allow to dry for 8 hours before handling.

There are many ways to create lime wash patinas and finishes, and it is advised to test product use and finishes prior to commencement of application of any wood product.

Stone & Brick Washes


When applied to natural mineral surfaces such as stone, brick, or NHL 3.5 cements BioCalce Glaze can be applied as a wash, diluting with water 100% – 200%, applying on a wetted/damp surface, applying in a crisscross pattern with a large lime brush, or with a spot painting technique. As product begins to pull, wipe off gently with a brush, rag or sponge to slightly remove color to create an antique patina. For applications on Portland cement stuccos without a mineral base application, no guarantees can be provided for proper adherence. For best results on Portland cement surfaces, always apply a mineral base primer and paint according to instructions.


Dilute BioCalce Classico or BioCalce A with 50% – 150% with water, applying diluted paint over painted or masonry base to acquire a first coat base. Always wet masonry walls abundantly with water making sure that virgin masonry base has absorbed sufficient water so that lime paint application is not performed on a totally dry base. Apply base coat of lime paint and allow to dry for at least 8 – 12 hours. Follow instructions for BioCalce Classico or BioCalce A before application of BioCalce S onto lime base. To facilitate ease of application of washes on lime paint base, pre-wet liberally all sections of wall to be painted with water, applying diluted BioCalce S as per instructions on damp wall. Re-wet areas of lime wash again as needed, when moving across the surface with application of BioCalce S. For wash applications on lime wash base, it is advised to slightly alter color tones or hues to achieve more visible tonalities and effects using BioCalce S. When applying multiple coats allow time between coats to be visually dry before applying a successive coat of wash or paint.


Always wet exterior masonry walls abundantly with water making sure that virgin masonry base has absorbed sufficient water so that lime paint is not applied on a totally dry base. Dilute BioCalce Classico or BioCalce A with 100% –120% water, maximum 18 liters of water per one (1) 15-liter bucket of BioCalce Classico or BioCalce A, when applying paint to achieve a full coverage finish. If desired apply a 2nd coat of BioCalce Classico or BioCalce A, diluted 50% – 100% with water, depending on the density of lime paint desired for the surface. Always pre-wet 1st coat surface with water abundantly before applying BioCalce paints on a damp surface to enhance absorption and durability, as well to ease application of lime paint. Apply BioCalce S for wash or glaze effects as indicated in Section, STONE, STUCCO & BRICK WASHES.

BioCalce lime paints cannot be applied to most large flat areas, such as exterior brick floors, without the risk of product deterioration due to freeze-thaw conditions. Brick walls not covered by a roof may create poor conditions for BioCalce paints to remain integrated with brick because of freeze-thaw conditions that can cause brick to deteriorate rapidly on the surface, pulverizing as a result, thus causing lime paints to disappear. This situation can occur on chimneys, thresholds, and brick areas in contact with earth, particularly on the north face, where freezing conditions intensify on wet brick, causing brick to deteriorate rapidly. Brick in constant contact with damp soil may absorb salt nitrates from the earth and this too will cause brick to deteriorate rapidly.

Concrete Floors, Sidewalk or Driveway

BioCalce paints cannot be used on Portland cement based floors, sidewalk or driveways.

New Cement Stuccos

Portland Cements

New Portland cement should not be painted for about 28 days to ensure proper anchoring and drying. Apply 1 coat of BioGrip Micro or Medium diluted 30% with water, 4.5 liters water to one (1) bucket 15-liters of product; allow to dry for at least 12 hours. BioGrip may be tinted with tint for light and Medium colors. Apply desired base coats then follow with BioCalce Glaze according to instructions.

NHL 3.5 & 5.0 Cements

BioCalce Glaze can be applied to new wet or damp stucco for maximum effect to intensify durability and create blushing effects. Apply BioCalce Glaze according to instructions.

If applying lime wash on completely dried NHL 3.5 and 5.0 Cements, review instructions in brick section above and follow APPLICATION CYCLES instructions above. Most mineral paints and lime paints can be applied directly to Natural Hydraulic Cements without the need to prime with BioGrip.

Decaying or Crumbling Stuccos or Powdery Surfaces

Chalking surfaces, which could prevent proper anchoring of the base coating must be removed and pressure washed. Apply Potassium Silicate Concentrate, diluted 100% with water (1:1) on all damaged surfaces, applying 2 – 3 coats in rapid succession and allow to dry for at least 12 hours. Allow to dry for at least 12 hours. Apply 1 coat of BioGrip Micro or Medium diluted 30% with water, 4.5 liters water to one (1) bucket 15-liters of product; allow to dry for at least 12 hours. Apply final paint finishes using BioCalce Glaze according to instructions.

Coatings with Efflorescence

Cement surfaces showing efflorescence should be removed with acid and thoroughly rinsed with water. Apply Potassium Silicate Concentrate, diluted 100% with water (1:1) on all damaged surfaces, applying 2 – 3 coats in rapid succession and allow to dry for at least 12 hours. Apply 1 coat of BioGrip Micro or Medium diluted 30% with water, 4.5 liters water to one (1) bucket 15-liters of product; allow to dry for at least 12 hours. For coatings on surfaces damaged by the saltpeter or efflorescence no guarantees can be provided. Apply final paint finishes using BioCalce Glaze according to instructions.

Aged Cement Stuccos

When new stucco repairs are performed on older cement stuccos, apply EcoForte Consolidator diluted 50% with water (2:1), to older surfaces prior to applying new cement stucco. Dirty and/or contaminated surfaces should be cleaned and any attached algae removed manually or by mechanical means, i.e., with a high-pressure washer. Stucco damaged by algae or mold should be treated with EcoDis. Apply EcoForte Consolidator to any new stucco repairs with the same dilution. Apply 1 coat of BioGrip Micro or Medium diluted 30% with water, 4.5 liters water to one (1) bucket 15-liters of product; allow to dry for at least 12 hours. Apply final paint finishes using BioCalce S according to instructions.

Stucco Repairs

See Aged Cement Stuccos above.


Store in a cool, dry and protected from frost. Close the open containers with care. Store liquids only in plastic buckets.


Do not apply any products in direct exposure to strong/hot sunlight, rain, mist, high humidity (> 80%), at dew-point formation, or in the presence of strong wind. Beware of the danger of frost overnight. If applied by roller or sprayer, protect surrounding surfaces as necessary. Protect eyes and skin from splashes of paint. Cover glass, ceramic, natural stone, brick, metal, wood, painted surfaces and glazed tiles. Clean affected areas immediately with water. Prominent elements of the building (cornices, parapets, etc.,) should be treated with skill, covering flashings, gutters, copper coatings, etc. …

Do not work in air temperature lower than 13°C / 55°F and not above 31°C / 88°F. Clean work tools with water immediately after use. Keep out of reach of children. In case of contact with eyes and skin, wash immediately with plenty of water. In cases of consumption, consult a Doctor or call the CDC Poison Center (see Safety Data Sheet).

In case of contact with eyes and skin, wash immediately with plenty of water and/or a saline solution. Always keep a good supply of saline solution for eyes and use abundant amounts to wash eyes. Do not rub eyelids or physically touch your cornea or surrounding area prior to and during washing. Consult a Doctor immediately in cases of irritation or severe burning sensation. In cases of consumption, consult a Doctor or call the CDC Poison Center (see Safety Data Sheet). Keep out of reach of children.

Water Contamination Hazard

CLASS 1     This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations (CPR) and the MSDS contains all of information required by the CPR, and it is classified as a non-hazardous material.

Product Contamination Hazard

CODE CER / NORMATIVE EAC / Decision commuted by the Commission n. 2000/532/CE

NOT DANGEROUS     The directive 75/442/CEE, 08 01 production, disposal, formulation, supply, use, and removal of paints and varnishes: 10 13 04 for removal of paints and varnishes; 10 13 04 disposal of lime and hydrated lime products.


Do not enter product in its original concentration into drains or open waters. Do not store at public waste disposal sites. In case of conduction into adapted biological purification plants no disturbances need be expected. The preparation has been estimated by conventional method (calculated-procedure) of EG directive 1999/45/EG) and is classified as non-hazardous for the environment.

Dispose according to local regulations. Empty cans should be disposed of according to local regulations; plastic buckets are 100% PBS, NO. 5, approved for food storage; 100% recyclable if cleaned thoroughly prior to recycling.

Additional Information

This Technical Sheet lists data collected on the basis of technique and experience. Given the multiplicity of use of the product they cannot be binding and the user cannot refrain from using common sense and experience for the individual case. This information shall not constitute any legal obligation and no obligation from the seller or point of purchase, or any agreements inferred by employees who sale this product. Insurance or guarantees issued by our employees or employees should always be confirmed separately in writing. Any information about product adaptability and use of the product, must be verified by user prior to purchase. Check the exact consumption of product for the surface where product may be applied to determine amount of products needed. The user must verify the color matching before starting work.

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