Could not seal my 8" pvc irrigation pipe this morning. Tried 3 times, scuffed up the pipe as well and it does not stick under water OR UNDER ANY CIRCUMSTANCE'S as shown in the commercials. The pipe is not fixed and is still leaking. Good thing it was purchased at Walmart as they do take everything back and I will be returning this bogus product today. My duck tape works just fine under an emergency. Do not waste your money.