DECRA-SEAL (VOC) – Decorative Concrete Cure & Seal

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Product Data, W. R. MEADOWS

03 39 23 DATA SHEET 3568-000 Click for Print Version Related Content:
Material Safety Data Sheet:
(USA, French)
Application Guidelines

DECRA-SEAL™
Non-Yellowing Acrylic Curing & Sealing Compound for Decorative Concrete (VOC-Compliant)

DESCRIPTION
DECRA-SEAL is a non-yellowing, acrylic-based, high solids, liquid curing and sealing compound for decorative concrete. The product is clear, transparent and easy to apply. DECRA-SEAL also offers improved resistance to water, alkalis, mild acids, and petroleum spirits. The product has been formulated to seal and protect decorative coloured concrete by producing a hard, clear film. This product is specifically formulated for the residential decorative concrete market. DECRA-SEAL meets the 350 g/L VOC limit for concrete curing compounds.

USES
DECRA-SEAL is designed for various applications, including exterior concrete surfaces, driveways, patios, swimming pool areas, and exposed aggregate, as well as any exterior surface where protection and sealing of concrete is desired. The use of DECRA-SEAL on any exterior concrete surface provides a durable, long-lasting finish that has improved resistance to chemicals, oil, grease, de-icing salts and abrasions.

FEATURES/BENEFITS

  • Provides a totally clear membrane that will not yellow, for new or existing concrete.
  • Seals all concrete surfaces providing a glossy appearance and easier cleanup.
  • Dustproofs concrete with a tough, durable film.
  • Helps minimize spalling of exterior concrete.
  • Provides good blush resistance in damp areas.
  • Applies easily … dries to the touch in 30 – 60 minutes.
  • Provides a clear, tough film which improves abrasion and stain resistance.
  • Offers improved resistance to rain, sun, freezing temperatures, most acids and industrial chemicals, oil, grease, de-icing salts, cleaning agents (except aromatic solvents), caustics, airborne soot, dust, and other pollutants.
  • Seals and enhances the beauty of many concrete surfaces for years.
  • Can be recoated after thorough cleaning to restore original beauty.
  • VOC-compliant.

PACKAGING
3.8 Litre (1 U.S. Gal.) Cans
18.9 Litre (5 U.S. Gal.) Pails

COVERAGE
7.37 – 14.73 m² per litre (300 – 600 ft.²/U.S. gallon).
Coverage may vary due to porosity and condition of the concrete.

SHELF LIFE
When stored indoors and in original, unopened containers at temperatures between 4 – 32° C (40 – 90° F), shelf life is a minimum of two years from date of manufacture.

SPECIFICATIONS

  • AASHTO M 148, Type 1, Class B
  • ASTM C 309, Type 1, Class A & B
  • ASTM C 1315, Type 1, Class A
  • Complies with Volatile Organic Compound (VOC) Concentration Limits for Architectural Coatings Regulations in Canada.

TECHNICAL DATA
The following results were obtained under laboratory conditions:

Drying Time @ 22.7º C (73º F), 50% RH 1 – 2 hours**
Re-coat 2 – 24 hours
Foot Traffic 4 – 6 hours
Wheel Traffic 6 – 12 hours
VOC Content 331 g/L
Solids Content 25%
Adhesion to Concrete Excellent
Ultraviolet light (UV) degradation
ASTM C 1315, 8.86
Ultraviolet Resistance Non-yellowing
Chalk Resistance No chalking
Check/Peel Resistance No deterioration
Alkali Resistance Excellent

**Low concrete or air temperatures and/or high relative humidity will extend drying times

APPLICATION
Surface Preparation … Apply as soon as all surface water has disappeared and the concrete surface will not be marred by walking workers. Surface to receive sealer must be dry and free of contaminants. Remove all stains or discolourations.

Application Method … Apply using low-pressure sprayer, such as a Chapin 19069. A 110° fan pattern spray tip rated at 3.7 L/m (1.0 gpm), such as a Chapin 1-5943, provides an excellent even coating. Please contact sprayer manufacturer to ensure suitability of sprayer with product.

Product should not be applied during high temperature conditions in direct sunlight. These conditions cause rapid evaporation, which does not allow the film to form properly. Under these conditions, the film may peel, bubble, and/or turn white (blush).

Apply product as soon as all surface water has disappeared and the concrete surface will not be marred by walking workmen. Apply evenly over entire surface; avoid puddling in low areas. Restrict foot traffic for at least four hours. Twelve hours is preferred.

Product should not be applied to concrete containing excessive moisture. Entrapped moisture in a solvent-based sealer may cause the film to peel and/or turn white (blush).

Additional coats may be applied once a previous coat has dried.

Note: In cases when product is applied to existing concrete surfaces (more than 28 days old), the variations in colouration of the sands and aggregate present in the existing surface may be enhanced, causing the surface to appear discoloured.

Drying Time … Product dries quickly. Drying times may be extended depending on application rate, temperature, humidity, and project conditions. Restrict foot traffic for at least four hours. Twelve hours is preferable.

Cleanup … Clean tools after use with a solvent such as SEALTIGHT SOLVENT, xylene, or toluol.

PRECAUTIONS
Apply without dilution or thinning VOC content of the product. FOR INDUSTRIAL USE ONLY. FOR EXTERIOR APPLICATION ONLY. Surfaces treated with DECRA-SEAL should not be applied during high temperature conditions in direct sunlight. These conditions cause rapid evaporation, which does not allow the film to form properly. Under these conditions, the film may peel, bubble, and/or turn white (blush). DECRA-SEAL should not be applied to concrete exposed to excessive moisture. Entrapped moisture in a solvent-based sealer may cause the film to peel and/or turn white (blush).

Do not apply DECRA-SEAL if the temperature of the concrete is below 4º C (40º F). DECRA-SEAL is designed for coloured concrete, but mottling may occur. Do not use on dense or non-porous surfaces, i.e. brick, stone, etc. Do not use DECRA-SEAL as a waterproofing sealer on masonry surfaces.

Concrete containing calcium chloride will remain dark longer when treated with DECRA-SEAL. The specifier and user shall determine the suitability of product for specific applications and assume all responsibility in connection therewith.

HEALTH AND SAFETY
Avoid direct contact with this product, as it may cause irritation of the eyes and/or skin. Inhalation of vapours may result in transient central nervous system depression. DECRA-SEAL is flammable. DECRA-SEAL should not be utilized in locations where food items are present. Refer to Material Safety Data Sheet for health and safety information.

MASTERFORMAT NUMBER AND TITLE
03 39 23 – Membrane Concrete Curing

LEED INFORMATION
May help contribute to LEED credits:

This material last updated June 2012.

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About W. R. MEADOWS

W. R. MEADOWS, INC. designs, manufactures, and markets high-quality building materials for today's construction professionals. Products are sold through an authorized distribution network. The family-owned and operated company focuses on product quality, exceptional service, and trusted integrity since its founding in 1926.
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