Flex Seal Flex Shot is the revolutionary super thick rubber sealant to caulk, bond, and seal virtually everything. Because it's so thick, you can fill huge cracks and holes and stop tough leaks instantly. Flex Seal Flex Shot comes out nice and thick and will cling to any surface. Then it turns into a stretchy rubber seal that's virtually indestructible. The free-extension tube makes even hard-to-reach repairs perfect every time. Thick rubber sealant that caulks, bonds, and seals virtually everything. Comes in a oz. tube. Completely waterproofsealant. No caulking gun required. No running, dripping, or mess. Formula expands and contracts. Dries faster than many other caulks and sealants. Can be used again and again, so there's no waste. Excellent for: kitchens and baths, sinks and showers, tubes and tiles, windows, roofs, and gutters, autos and beats, RV's and campers, PVC pipes and duct work. Also great for crafts and decorative items. Can withstand temperatures from -76 degrees Fahrenheit to 350 degrees Fahrenheit. Safety Data Sheet.