
Reglazing or refinishing a stained or discoloured fiberglass shower pan is possible and can save you a lot of money. There are refinishing kits and products available, but it is important to thoroughly clean the surface first with an aggressive cleaning product and a stiff brush or scouring pad. Some popular products include Tilex, Comet cleanser, and Barkeeper's Friend. Additionally, there are DIY methods using products like ArmoGlaze, which is a pour-on glaze that is odorless and made in the USA.
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What You'll Learn

Reglazing to make it look new
Reglazing a fibreglass shower pan is a practical and fulfilling DIY project that can make your shower pan look as good as new. Before you start the reglazing process, ensure that your shower pan is thoroughly clean and free of any dirt, soap residue, or leftover caulk. Use a sharp putty knife or razor to carefully remove the caulk around the edges, being careful not to damage the shower pan itself. Then, wipe the entire area with a bleach-based cleaner.
The next step is to sand down the surface of the shower pan. Sanding will create a rough surface for the paint to adhere to. Once the surface is prepared, it's time to apply the primer. Spray the primer in a light, regular spray from one side to the other. You may need to apply two coats of primer to ensure complete coverage. Allow the primer to dry before moving on to the next step.
After the primer is dry, it's time to apply the paint. Use an epoxy paint that is specifically designed for use with fibreglass. Place the paint in your spraying device and remember to use a respirator to prevent inhalation of the fumes. Spray the paint from one side of the pan to the other, just like you did with the primer. Allow the paint to dry, and then apply a second coat. Repeat this process 4–5 times, allowing each coat to dry before adding another.
Once the final coat of paint has dried, you can assess the coverage. If there are any areas that have been missed, you can touch them up with a small paintbrush. After you're happy with the coverage, allow the newly refinished shower pan to fully cure.
To ensure a professional-looking finish and prolong the lifespan of your shower pan, there are a few additional steps you can take. Remove and reapply caulking around the edges of the shower pan to prevent water leakage and damage, using a high-quality silicone caulk suitable for bathrooms and designed to resist mould and mildew. Smooth the caulk with a wet finger or finishing tool for an even, tidy seal.
Finally, you can apply an optional non-slip polish designed for fibreglass surfaces. This will add shine and protection to your newly refinished shower pan, making cleaning easier and providing additional slip resistance for safety.
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Repairing discolouration
Before refinishing a fibreglass shower pan, it is crucial to clean and repair it thoroughly. Begin by removing any soap scum, dirt, and grime using a non-abrasive cleaner and a soft cloth or sponge. Avoid harsh chemicals or abrasive tools that could damage the fibreglass surface. For tough stains, use a cleaner specifically designed for fibreglass. After scrubbing, rinse the shower pan well to remove any residual cleaner.
Once the shower pan is clean, inspect it for any cracks, chips, or other damage. Small imperfections can be repaired using a fibreglass repair kit, which can be purchased at most home improvement stores. These kits use high-tech Light Cure Acrylic (LCA) technology to cure with a specific spectrum of blue light. The repair material, usually a resin compound, should be mixed and applied to the damaged area, following the kit's instructions carefully.
For discolouration, a simple DIY solution can be used to repair the fibreglass shower pan. Mix one cup of baking soda and one tablespoon of water to form a thick paste. Apply this paste to the discoloured areas and let it sit for about 30 minutes to an hour. Then, rinse the shower pan with hot water and use a squeegee to scrape any remnants into the drain. For better results, sprinkle baking soda onto a halved citrus fruit, such as lemon or grapefruit, and rub it into the discoloured areas before letting it sit. The citric acid will help dissolve stains and leave a pleasant smell.
After treating discolouration, it is important to sand the surface of the shower pan to create a rough texture that the new finish can adhere to more effectively. Use fine-grit sandpaper to lightly sand the entire surface, being thorough yet gentle to avoid creating deep scratches. Once sanding is complete, clean the shower pan again to remove any dust and debris. This final preparatory step ensures a smooth and clean surface, setting the stage for a successful refinishing job.
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Using refinishing kits
Refinishing kits are a great option for those who want to restore their fiberglass shower pans without incurring the cost of a professional refinishing job. These kits are affordable and can be purchased at most home improvement stores. Before using a refinishing kit, it is important to thoroughly clean the shower pan to ensure that the refinishing coat adheres properly. This involves removing any soap scum, dirt, grime, and leftover caulk using a non-abrasive cleaner and a soft cloth or sponge. For tough stains, a cleaner specifically designed for fiberglass can be used. It is also important to avoid harsh chemicals or abrasive tools that could damage the fiberglass surface.
Once the shower pan is clean, inspect it for any cracks, chips, or other damage. Small imperfections can be repaired using a fiberglass repair kit, which typically involves mixing and applying a resin compound to the damaged area. It is important to follow the instructions provided with the kit carefully. Once the repair material has cured, it should be sanded down to create a smooth surface. The surface of the shower pan should then be sanded again to help the paint adhere better.
After sanding, a primer should be applied to the shower pan. This can be done by spraying the primer in a light, regular spray from one side of the pan to the other. Two coats of primer may be necessary to ensure complete coverage. Once the primer is dry, epoxy paint designed for use with fiberglass can be applied using a spraying device. It is important to wear a respirator to prevent inhalation of the fumes. Two coats of paint should be applied, allowing each coat to dry before adding the next.
Finally, once the paint is dry, the coverage of the shower pan can be assessed. Any areas that have not been covered by the paint can be touched up with a small paintbrush. It is important to note that the shower pan should not be used for at least two days after the refinishing process is complete. Additionally, it is recommended to regularly inspect the refinished shower pan for any signs of wear, such as chips, cracks, or peeling, to ensure that the refinishing remains intact.
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Epoxy paint products
Yes, you can refinish a fibreglass shower pan using epoxy paint products. This can help cover up dull or unattractive spots on your shower pan. Before applying epoxy paint, it is important to prepare the surface thoroughly. Clean the fibreglass shower pan with a bleach-based cleaner to remove any dirt, soap residue, or leftover caulk. Use a sharp putty knife or razor to remove the caulk, being careful not to damage the shower pan. Then, sand down the surface to create a rough texture that will help the paint adhere better.
When using epoxy paint products for refinishing, start by applying a primer, which will bind to the sanded surface and provide a base for the paint. Spray the primer in a light, regular coat from one side to the other, and you may need to apply two coats for complete coverage. Allow the primer to dry before proceeding.
Next, use an epoxy paint designed for fibreglass surfaces. Place the paint in your spraying device and remember to wear a respirator to protect yourself from inhaling the fumes. Spray the paint from one side to the other, ensuring even coverage. Allow the paint to dry, and then apply a second coat. Repeat this process 4-5 times, allowing each coat to dry before adding another.
Once the final coat of paint has dried, you can inspect the coverage. If there are any areas that require touch-ups, use a small paintbrush to carefully fill in these spots. After you're satisfied with the coverage, your refinished fibreglass shower pan is ready to use.
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Aggressive cleaning
For tough stains, a soak-and-scrub method can be used. Cover the shower pan with a couple of layers of paper towels soaked in a solution of dishwasher detergent and water. Keep the towels wet for at least 24 hours, then scrub. Before applying this method to the entire shower pan, test it on a small area to ensure it doesn't discolour the fibreglass.
Another option is to use a commercial cleaner specifically formulated for fibreglass shower floors. Look for oxalic-acid-based cleaners that can remove rust spots and mould stains without damaging the shower pan. Always wear gloves and a mask when using commercial cleaners, as they can be harsh on the skin and release fumes that irritate the lungs.
For a more natural approach, a paste made of baking soda and water can be applied to the stained areas. Use a soft-bristled brush or an old toothbrush to work the paste into the stains in a circular motion to prevent streaks. This method is gentle yet effective in killing mould and removing stains.
Additionally, vinegar can be used to clean fibreglass shower pans. Soak a rag or sponge in vinegar and wipe it onto the shower pan, or apply the vinegar with a spray bottle. Let it sit for about 10 minutes before rinsing with warm water. This technique is excellent for removing soap scum buildup, hard water spots, and grime.
While aggressive cleaning can help remove tough stains and restore the appearance of a fibreglass shower pan, it is important to exercise caution. Avoid using super abrasive scrubbers or cleaning agents that can scratch or damage the surface of the fibreglass. Always test new cleaning products or methods on a small area first to ensure they are safe for the material.
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Frequently asked questions
Start by giving your shower pan a good, aggressive clean using a cleanser like Comet, a stiff-bristled brush, and a coarse scouring pad. Then, use a refinishing product to give your shower pan a new look.
There are refinishing (paint-epoxy) products available on the market. Before applying the refinishing product, ensure the shower pan is thoroughly cleaned and rinsed.
Use an aggressive cleaning product like Comet cleanser, Tilex, or Barkeeper's Friend. Plug the drain and fill the pan with undiluted bleach. Use a stiff-bristled brush or a coarse scouring pad to scrub away any stains or discolouration.










































