± 50% joint movement
Excellent durability. One component
no mixing required.
One Components, Class - A Polyurethane Sealant
Bostik Seal ‘N’ Flex 1 is a low modulus, one component, Class-A polyurethane sealant. When cured it will form a tough & flexible seal capable of cyclic expansion & compression movement of 100% (±50%) of the original installed joint width.