No products in the cart.
502MS Karna-Flex is an elastomeric thermoplastic-rubber mastic. Its ease of application superior adhesion elasticity and durability make Karna-Flex an ideal repair sealant. Available in a brush mastic or caulking cartridge. USES: 502MS Karna-Flex’s elastomeric properties make it an excellent sealant for prepared metal concrete asphalt spray polyurethane foam and plywood roof system details. Ideal for sealing and waterproofing cracks and splits on BUR and modified bitumen asphalt roofs metal roof seams and splits EPDM TPO and PVC seams as well as gutters fasteners pinholes in metal flashing and curb details. Also use to seal around skylights penetrations and roof top equipment. May be applied to wet or dry surfaces. PVC and TPO roof surfaces should be at least 4-years old prior to application.
- 1 component-no need to intermix with other materials
- Easy application by brush or caulking gun
- Superior adhesive and cohesive strength
- Low temperature flexibility and adheres to wet or dry surfaces