Pro tip. And PLEASE learn from my mistake! Ha. I thought I was an ok pipe sealer....nope. The first time I tried it a bunch gooshed out. Luckily I had bought an additional small bottle of it. All in all I think I lost a quart. Not the end of the world but $9 gone in a flash. Ha. So I went back to Lowes and found these sweet end caps. Works well!!