The XFasten Silicone Sealant is a weatherproof silicone caulk that's packed inside high-pressure resistant canisters and anti-jamming, smooth-flowing nozzle. It's beginner-friendly-especially for those with little to no experience in sealing leaks.

Why Choose White Silicone Sealant?

• WATERPROOF silicone sealant that’s made of 100% silicone with no fillers, delivering WATERTIGHT sealing on indoor, outdoor, and submerged surfaces. Our white caulk is ideal for wood, glass, metal, plastic, tiles, and concrete.
• LONG LASTING. Our white bathroom caulk safeguards RV windows, kitchen tiles, and shower floors and delivers stain-free tub caulk protection against high temp, leaks, acid, and stain for 25 years.
• ODORLESS. Choose a weatherproof exterior caulk with NO CHEMICAL SMELL over a bathroom sealant that reeks of a sharp, acidic smell. Our marine caulk cures uniformly, is safe, and has no VOC.
• ZERO-CLUMPING. We engineered a clog-free thermoplastic nozzle that allows our marine caulk to flow with just the right viscosity- never runny nor clumpy; it’s 100% Silicone with no fillers, so our RV caulk cures quickly.
• NO SHRINKING. Our bathroom caulking white has the ideal viscosity to be managed and shaped easily and won’t crack or shrink against UV or extreme temps.

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