Sikaflex-221 Caulk is a polyurethane sealant/adhesive that provides permanent elastic adhesion to a number of surfaces with excellent cut and tear resistance. Perfect for use on RVs, trucks, buses, and trailers, this fast-curing caulk is specially formulated to resist the shock and abuse encountered over countless road miles. Sikaflex-221 is weather-resistant, sandable, paintable, and NSF-approved for potable water and incidental food contact.
- Permanent elastic adhesion to various surfaces
- Excellent cut and tear resistance
- For use on RVs, trucks, buses, and trailers
- Resists shock and abuse of countless road miles
- Weather-resistant, sandable, paintable