Sikaflex 521UV (pack of 12)

Sikaflex® 521 UV is a multi-purpose, non-sag elastic one component sealant based on a polyurethane-hybrid compound, which cures on exposure to atmospheric humidity to form a durable elastomer. 521 is manufactured in accordance with ISO 9001 / 14001 quality assurance system. It is specifically formulated for use in Caravans, Motor Homes, Boat and Solar Panels, Mounting Wood and Metal Fixing.