About This

100% WATERPROOF marine caulk silicone tube sealant that’s 100% waterproof on indoor, outdoor, and submerged surfaces. Our matte black caulk delivers airtight sealing to wood, aquarium, glass, metal, tiles and concrete.
FORMULATED TO LAST. Our black caulk offers reinforced pressure resistance for RV, shower and tub caulk protection; rated to safeguard against high heat, acid corrosion and leaks for 20 years.
BULK SILICONE CAULK. Our black outdoor caulking sealant comes with 8 tubes- 80oz of black caulking silicone sealant for a fraction of the cost. It is easy to manage and won’t crack or shrink.
NO CLUMPY TEXTURE. With a clog-free thermoplastic nozzle, our black caulking waterproof flows with just the right viscosity- not runny nor clumpy. This window sealant caulk is 100% Silicone with no fillers.
NO CHEMICAL SMELL. This black RTV silicone sealant for RV sealant and caulking DOESN’T produce a sharp chemical smell upon curing. Our bathtub caulk is safe and delivers smooth, uniform sealing.