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 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. Caulks, bonds and seals virtually everythingDirections: 1-Make sure all surfaces is clean, dry, and free from dirt, grease, and oil. 2-Use in a well-ventilated area. 3-Hold can at a 45-degree angle, push on the nozzle and apply directly to the area being treated. 4-Remove excess product.No caulking gun is requiredNo running, dripping, or mess. Formula expands and contracts.Completely waterproofWill NOT shrink or crackCan be used again and again, so there’s no wasteEasy to useCan withstand temperatures from -76°F to 350°FDries faster than many other caulks and sealants