One-component, moisture-cured polyurethane formula enables fast, tool-free application and curing
High elasticity cures to a tough, flexible consistency for long-lasting joint sealing
Exceptional cut and tear resistance ensures durability under stress
Excellent adhesion to most construction materials without primer
Paintable surface compatible with water, oil, and rubber-based paints
Summarized by Shop
Sikaflex®-1A is a premium-grade, high-performance, moisture-cured, 1-component, polyurethane-based, non-sag elastomeric sealant. Sikaflex-1a can be used in green and damp concrete applications. 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, A. Canadian standa
Product Type
Polyurethane-based elastomeric sealant
Joint Movement
Up to 35%
Cure Type
Moisture-cured, one-component
Temperature Range
-40°F to 170°F (-40°C to 82°C)
Container Sizes
300 mL, 590 mL, 600 mL
Color
Aluminum grey, white, gray, black, beige, yellow, blue