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GacoFlex S-20 Series are single component elastomeric waterproofing moisture curing silicone coatings. GacoSil S-20 Series are petroleum-free coatings.
Standard specification for liquid applied silicone coating used in spray polyurethane foam roofing.
GacoFlex S-20 is designed as a protective coating for spray-in-place polyurethane foam, metal, concrete, wood, built-up roofing and most single ply’s.
Excellent durability, color stability and chalk resistance.
Excellent solvent and chemical resistance.
Excellent adhesion to polyurethane foam.
One year from date of manufacture when stored in sealed containers below 75°F (24°C).
Gaco Western's T-5110 VOC compliant thinner.
None normally required.
Mix before application to assure uniform color and consistency.
Apply by brush or roller as received. For spray application, use as received. Consult Gaco Western's Silicone Spray Guide SG-Silicone for more information.
For cold weather application, keep material stored above 65°F (18°C). Recoat time is between 4 to 48 hours. Longer recoat times will result in poor intercoat adhesion and delamination.
Clean spray equipment with GacoFlex T-5110 thinner. Recirculate through lines and gun until residual GacoSil is removed.
Applied coating will cure in 1 to 4 hours depending on temperature and humidity.
GacoFlex S-20 is considered combustible. Keep away from heat, sparks and open flame. Avoid prolonged breathing of vapors and prolonged or repeated skin contact. Use only with adequate ventilation.