- Forms a tough and flexible seal
- Unaffected by normal weathering conditions
- Retains its original properties even after years of weather and UV exposure
One Component, Class-A Polyurethane Sealant
Seal 'N' Flex 1 is a low modulus, one component, Class-A polyurethane sealant. When cured it will form a tough and flexible seal capable of cyclic expansion and compression movement of 100% (+ 50%) of the original installed joint width.