Sikaflex ® -221 is the most well known brand of one component polyurethane sealant/adhesive in the world. Our workhorse. This fast curing product provides permanent elastic adhesion to a number of surfaces with excellent cut and tear resistance. Considered by many to be the ultimate choice in truck, trailer, RV and bus manufacturing. Designed to resist the shock and abuse encountered over countless road miles, Sikaflex ® -221 will maintain its strength and adhesion over the long haul. Sikaflex ® -221 is weather resistant, sandable, paintable and NSF approved for potable water and incidental food contact.
Sikaflex®-221 is a high-quality multi-purpose non-sag 1-c polyurethane sealant/adhesive that cures on exposure to atmospheric humidity to form a durable elastomer. Meets approvals ASTM C920 types Sikaflex®-221 is tested and classified by ANSI/UL 723 “Test for Surface Burning Characteristics of Building Materials”.
Uses:
Sikaflex®-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals of high adhesive strength. Suitable substrate materials are wood, metals, metal primers and paint coatings (2-c systems), ceramic materials, and plastics.
Features: