Bostik Seal N Flex FC is a high performance fast cure one component polyurethane sealant. When cured it will form a tough, flexible seal and bond capable of cyclic, expansion and compression movement. Fast tack free time and cure rate High bond strength A medium/high modulus product, which forms a resilient and permanently elastic seal Excellent adhesion to most materials including metals, concrete, brick, wood, plasterboard Paintable (refer printability section)