SikaLastomer-511 is a high solids, non-hardening, non-drying, non-oxidizing, butyl rubber-based sealant designed for factory sealing the female lip of standing-seam roof and wall panels and concealed endlaps. It has excellent adhesion to oily Galvalume, Galvalume Plus, KYNAR 500, aluminized metal, ZINCALUME, siliconized polyester and polyvinyl fluoride painted metals, and will not corrode Galvalume, Galvalume Plus, or copper. It offers excellent application properties, and is formulated without asbestos fillers.
- Excellent pumpability and gunnability
- Permanent surface tack allows factory-caulked panels to be bonded in the field up to 6 months after initial application
- No presence of voids, cracks, separations or breakdown of the compound