Sikaflex 1A is a premium, one-component polyurethane sealant designed for professional-grade joint sealing in construction applications. Its non-sag consistency makes it ideal for vertical and overhead joints, delivering a durable, flexible seal that accommodates movement while maintaining strong adhesion.
Engineered for long-term performance, Sikaflex 1A bonds to a wide variety of substrates including concrete, masonry, aluminum, steel, and wood—making it a versatile choice for both new construction and repair projects.
Meets Federal
specification TT-S-00230C, Type II, Class A. Meets ASTM C-920, Type S,
Grade NS, Class 35, use T, NT, O, M, G, I; Canadian standard CAN/CGSB
19.13-M87.
Chemical Resistance Good resistance to water, diluted acids, and diluted alkalines. Consult Technical Service for specific data.
SEE COLOR CHART IN ADDITIONAL INFORMATION TAB BELOW
Available in- White, Aluminum Gray, Limestone, Black, Colonial White, Capital Tan & Dark Bronze