How to Fill Bathtub Cracks With Bondo

Bondo is a two-part putty that is used to fill and repair holes, cracks, and other damage to surfaces. It is a strong and durable material that can be sanded, painted, and stained. Bondo is a great option for repairing bathtubs because it is waterproof and can withstand the wear and tear of everyday use.

Materials:

- Epoxy putty or Bondo

- Sandpaper

- Putty knife

- Mixing stick

Instructions:

1. Turn off the water supply to the bathtub.

2. Clean the bathtub thoroughly with a mild detergent and water.

3. Allow the bathtub to dry completely.

4. Sand the area around the crack with 80-grit sandpaper to roughen the surface and help the Bondo adhere.

5. Mix the Bondo according to the package instructions.

6. Apply the Bondo to the crack with a putty knife, making sure to fill it completely.

7. Smooth out the Bondo with the putty knife.

8. Allow the Bondo to dry according to the package instructions.

9. Sand the Bondo with 220-grit sandpaper to smooth it out.

10. Paint or stain the Bondo to match the bathtub.

11. Turn the water supply back on to the bathtub.

Tips:

- If the crack is very large, you may need to use a fiberglass patch to reinforce it before applying the Bondo.

- Bondo can be used to repair bathtubs made of a variety of materials, including fiberglass, acrylic, and cast iron.

- Bondo is a versatile material that can be used for a variety of repairs around the home, such as repairing holes in walls, filling cracks in furniture, and repairing damage to car bumpers.