How to Remove Scratches From a Fiberglass Bath

Written by rachel turner
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How to Remove Scratches From a Fiberglass Bath
Repair scratches on a fibreglass bathtub with simple products. (John Slater/Digital Vision/Getty Images)

Common bathtubs are made from a long-lasting and durable material called fibreglass. This fibreglass material gets coated with a protective gel layer during the bathtub manufacturing process. Years of use and cleaning with harsh chemicals can cause this protective layer to wear and fade off, which may lead to scratches. While these scratches make the bathtub appear unsightly and dirty, they come out easily using a few simple products.

Skill level:

Things you need

  • Bucket
  • Mild detergent
  • Wood spoon
  • Soft-bristled scrub brush
  • Microfiber cloth
  • White water-based automobile polishing compound
  • 3 clean cloths
  • Fibreglass wax
  • Foam applicator

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  1. 1

    Fill a bucket with warm running water. Add three to four drops of mild detergent into the water and stir with a wooden spoon until soapy.

  2. 2

    Saturate a soft-bristled scrub brush in the warm, soapy water. Clean the bathtub with the brush to remove any dirt, soap scum or grime.

  3. 3

    Rinse the bathtub with clean water to remove all soap residues. Dry the bathtub with a microfiber cloth.

  4. 4

    Squeeze a small, quarter-sized dab of white water-based automobile polishing compound onto a clean, soft cloth. Rub the white polishing compound over the scratched fibreglass in small, circular motions. Continue rubbing the compound into the fibreglass scratches until they disappear from the bathtub.

  5. 5

    Wipe the white automobile polishing haze away from the bathtub using a clean, dry cloth. Allow the polishing compound to dry on the fibreglass bathtub as indicated on the package label.

  6. 6

    Apply an even layer of fibreglass wax to the bathtub using a foam applicator, specifically in the areas where you performed the scratch repair. You can find fibreglass wax in most marine or boat supply stores. Refer to fibreglass wax instructions for complete application techniques since different brands may have different methods of use.

  7. 7

    Allow the fibreglass wax to dry on the bathtub for the stated amount of time until a white haze forms. Use a soft, clean cloth to buff the wax on the fibreglass tub until you produce a pronounced shine.

Tips and warnings

  • Fibreglass bathtubs come in many different colours. Choose the correct colour automobile polishing compound that matches the colour of the bathtub.
  • Never apply fibreglass wax to the bottom of the bathtub. Wax on the floor of the tub could cause serious accidents and injury due to slipping on the wax.

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