When you're dealing with leaks, gaps, or weatherproofing issues on your rig, you need a sealant that can handle the road like you do. Sikaflex 221 Black Sealant delivers professional-grade adhesion and flexibility that won't crack, peel, or fail when the miles pile up.
Built for the Long Haul
- Superior Weather Resistance: Withstands extreme temperatures, UV exposure, and constant vibration without breaking down
- Flexible Bond Technology: Moves with your truck's natural flex and expansion, preventing cracks and separation over time
- Multi-Surface Adhesion: Bonds permanently to metal, fiberglass, rubber, and painted surfaces commonly found on semi-trucks
Professional Application Made Easy
This cartridge format works with standard caulk guns for precise application every time. Perfect for sealing cab windows, trailer joints, light fixtures, and anywhere moisture needs to stay out. The black color blends seamlessly with most truck finishes for a clean, professional appearance.
Sikaflex 221 cures to a tough, elastomeric seal that maintains its integrity through countless loading cycles, weather changes, and road vibrations. When your livelihood depends on keeping your rig road-ready, trust the sealant that professional mechanics and owner-operators rely on for lasting repairs.
