How to Install a Bathtub Liner

Lead Image
  • 24-48 hours
  • Beginner
  • 1,000-2,000
What You'll Need
Bathtub liner
Denatured alcohol
Caulk gun
Utility knife

A bathtub liner can provide a new look for your old bathtub surface. You can get standard liners at the home improvement store and install them with ease. This type of liner will be installed directly over the top of your existing bathtub and will basically cover up the existing tub. Follow the simple steps below to effectively install a bathtub liner.

Step 1 - Prepare the Bathtub

Remove anything that is on the surface of the bathtub so that the liner will stick well. To do so, pour denatured alcohol onto the surface of the tub. Use your rag to scrub the surface with the alcohol. It will remove soap scum and oil.

Step 2 - Remove the Knobs

To get the bathtub liner in place, remove the knobs from the fixtures in the bathtub. Unscrew them and set them aside so that you can replace them later. Some people take this opportunity to replace the faucet. If that is the case, take it off and add a new faucet later.

Step 3 - Apply Adhesive

Apply the adhesive to the old bathtub. Spread it evenly over the surface of the old bathtub. Ensure that every bit of it is covered so that you do not have any gaps in coverage when the new liner is installed.

Step 4 - Apply Sealer

You also need to install a sealer. It is a substance that will go around the outside edge of the liner to prevent moisture or anything else from getting under it.

Step 5 - Put the Liner in Place

The liner will be a large, single piece of acrylic or PVC. Place it on the bathtub and cut it to fit with a utility knife. Once the liner is in place, press it down to the bathtub surface so that all of the air is removed. You may have to place heavy objects onto the liner to make sure it sticks, or use a tool (such as a rubber mallet) with a towel on the end to push along the liner and expel the air.

Step 6 - Caulk

Apply a thin bead of caulk around the edge of the bathtub. Doing so will keep moisture out and create a finished look.

Allow the bathtub liner to dry. In most cases, you should allow it to dry for at least 24 hours before using the bathtub again.