Caulking a Faucet to Granite

Once you have the granite set on your bathroom walls or vanity, and the plumbing is installed and functional, you're not quite finished. If you don't caulk the joints where the plumbing fixtures meet the granite, moisture can get into those joints, causing mold and other problems. Caulking is a relatively simple task, but it does take a little practice to get it right. If you haven't done it before, try it out on some scrap wood before you start.

Scrub brush
Bleach
Caulk
Caulk gun
Razor knife
Long nail

Instructions

- 1
  Dip your scrub brush in bleach. Scrub all around the joint where the faucet meets the granite surface. Rinse it and let it dry.
- 2
  Set the caulk tube in the caulk gun, putting the back end in first and then snapping in the front.
- 3
  Cut off the end of the tube with a razor knife, making a diagonal cut that’s about an 1/8 inch wide. Slide a long nail into the hole to break the seal inside.
- 4
  Set the tip of the caulk tube onto the joint where the faucet meets the granite. Compress the trigger to push the caulk up to the hole at the end of the tube.
- 5
  Move the gun around the perimeter of the faucet as the caulk comes out, laying a smooth, even line over the joint between the faucet base and the granite. Go all the way around the faucet.
- 6
  Wet your thumb. Press it against the joint between the faucet and the granite. Smooth the caulk down, running your thumb over that joint all the way around.

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