CS-309-25 - Non-Yellowing, Acrylic Curing and Sealing Compound (VOC)
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CS-309™-25 DESCRIPTION Once properly applied, CS-309-25 provides a premium-grade seal for optimum moisture retention. This produces a hard, dense, high-compressive strength concrete. CS-309-25 will minimize hair-checking as well as premature cracking, dusting, spalling, and other common defects that result when concrete is not properly cured. This easy-to-use compound dries quickly and protects the concrete during construction. It resists adhesion of mortar droppings permits easier cleanup. USES For interior applications, specify and apply VOCOMP®-20 or VOCOMP-25 curing and sealing compound from W. R. MEADOWS. FEATURES/BENEFITS
PACKAGING COVERAGE SPECIFICATIONS
APPLICATION Application Method … Apply using low-pressure sprayer. An 80° fan pattern spray tip rated at 1.8 L (1.0 gpm) 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. For optimum protection, apply a further coating of the product and/or apply a coating of HIAC™, or HIAC-PLUS Note: Concrete must be a minimum of seven days old prior to the application of HIAC or HIAC-PLUS. 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 Do not apply CS-309-25 if the temperature of the concrete is below 4° C (40° F). CS-309-25 may be used on coloured concrete, but mottling may occur. Do not use on dense or non-porous surfaces, i.e. brick, stone, etc. Concrete containing calcium chloride will remain dark longer when treated with CS-309-25. Concrete floors properly cured with CS-309-25 meet section 8.9 “Adhesion of Tile Cements” of ASTM C 1315. For other specifications, secure the approval of the paint or resilient flooring manufacturer before applying CS-309-25. The specifier and user shall determine the suitability of product for specific applications and assume all responsibility in connection therewith. NOTE: In cases when CS-309-25 is applied to existing concrete surfaces (more than 28 days old), the variations in coloration of the sands and aggregate present in the existing surface may be enhanced causing the surface to appear discoloured. HEALTH AND SAFETY MASTERFORMAT NUMBER AND TITLE LEED INFORMATION May help contribute to LEED credits:
This material last updated July 2011.
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