How to silicone seal a bath

Jas Naylor
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How to silicone seal a bath

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Project Overview

Putting a silicone seal around your bath helps stop leaks and damage to the subframe. We take you through the whole process. You will learn how to apply the silicone properly and how to give it a clean finish. We also show you a clever way of protecting the surfaces around the bath with masking tape. 

Continue to step-by-step instructions

Step by Step Instructions

1 Put masking tape around the joins before you silicone
2 Apply a silicone seal around the bath tub
3 Finishing the bead of silicone around a bath tub
4 Apply a silicone seal around bath edge
  • Step 1. Put masking tape around the joins before you silicone

    Lay a strip of masking tape on both sides of every join you want to seal around the bath. Keep each piece of tape about 3mm back from the join so there is room to apply the silicone. This will help keep the silicone off your walls, floor and the bath itself.
  • Step 2. Apply a silicone seal around the bath tub

    Take the tip off your tube of silicone and place it in your caulking gun. Then screw on your nozzle and cut off the tip at a 45 degree angle. Starting in a back corner and working forward, run a bead of silicone along each join. Silicone dries quickly so, in order to give it a clean finish, do a couple of beads, move on to “Finishing The Bead” in Step 3, then come back and repeat for a couple more joins.
  • Step 3. Finishing the bead of silicone around a bath tub

    Run the tip of an icy pole stick along the bead of silicone. This helps push the silicone into the gap, gives it a neat finish and removes any excess. For the best results, wipe your stick after each run so the stick stays clean. Before the silicone has time to dry, carefully remove your masking tape. To keep the finish clean, pull the tape away from the join rather than towards it.
  • Step 4. Apply a silicone seal around bath edge

    Bend the end of the silicone nozzle to make it easier to reach under the back lip of the bath. Then, starting from the back, apply a silicone bead to each edge of the bath. Next clean it up with your icy pole stick and remove the masking tape before the silicone has time to dry. Once your silicone has had time to cure, your bath will be ready to use.

Tools and Materials

Tools

  • Caulking gun
  • Gloves
  • Safety glasses
  • Trimming knife

Materials

  • Bathroom silicone
  • Icy pole stick
  • Masking tape
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