Coming out of a dirty shower, it's hard to feel clean. And although it may seem that the fiberglass is completely damaged, in reality, cleaning the shower is not a big problem. It will take a few household supplies and a little patience to bring back the shine of a fiberglass shower stall.
Steps
Part 1 of 4: Prepare the site

Step 1. Remove everything from the shower
Remove all bottles, soap, razors, and any other soapy items from the shower. Wipe down any items to keep dirt and mold from getting back into the shower. Otherwise, mold on the bottom of the bottles can immediately spread to the clean surfaces of the shower stall.
- If there are empty or old items in the shower, throw them away.
- If the shower curtain is covering, remove and wash it.

Step 2. Wash off all dirt and debris
Rinse the shower to avoid accidentally rubbing dirt and debris into the walls of the shower stall, and the cleaning agent directly affects the adhering dirt.

Step 3. Ventilate the room
Open the door to keep steam and moisture out of the bathroom. Then turn on the fan. If the bathroom has a window, open it. And although the cleaning solution described in the article is natural, this does not negate the fact that it is quite corrosive and gives off vapors that it is better not to inhale.
Part 2 of 4: Prepare your cleaning solution

Step 1. Pour a ⅓ cup (80 ml) of liquid dish detergent into a spray bottle
Dishwashing detergent will dissolve the oils and fats that make up soap deposits and remove dried-on dirt.
- Use any grease-dissolving dish detergent.
- Too much dish soap will not ruin the cleaning solution, but it will be more difficult to rinse out later.

Step 2. Measure out 1 cup (240 ml) white vinegar
Vinegar is not only great against bacteria and mold, but also great for removing soap and limescale. And don't worry about the bad smell as it will evaporate when the vinegar dries.
If you can't stand the smell of vinegar, add a few drops of pure essential oil (such as lemon or orange) to the solution

Step 3. Heat the vinegar in the microwave
Set the timer for 1 minute to warm up the vinegar. Since warm vinegar is easier to mix than cold vinegar, this will increase the effectiveness of the cleaning solution.
- Don't bring the vinegar to a boil.
- If you are unsure of the power of your microwave, reheat the vinegar at 30 second intervals so that it is only slightly heated and does not become too hot or not warm enough.

Step 4. Pour the vinegar into a spray bottle and stir the solution
Mix the ingredients by shaking the bottle. Continue shaking the contents of the bottle until the solution is smooth. Do not shake the bottle too hard to avoid foaming the solution. As a result, you will get a solution colored in the color of the detergent and with a little foam.
- To get more or less detergent, change the amount of ingredients, but keep the white vinegar to detergent ratio at 3: 1.
- Alternatively, you can use a non-abrasive, store-bought, fiberglass-safe product. Make sure this product does not contain abrasives or bleach.
Part 3 of 4: Apply Detergent Solution

Step 1. Apply the cleaning solution to the dirty surface
Spray the solution onto the surface of the shower stall and tray. Wait 10-15 minutes for the ingredients to penetrate dried soap deposits, mold and mineral deposits.
If the shower stall is free of soap, mold and mineral deposits, you can start cleaning right away

Step 2. Rub the solution with a sponge, rag or soft brush
Wipe the surface of the shower stall with a non-abrasive material, paying particular attention to the dirtiest areas. Reapply the solution as needed. For example, if the detergent dries out before you reach a specific area, spray more of the detergent onto the cab surface.
Do not use hard-bristled brushes, hard sponges, or iron scouring pads to avoid scratching the fiberglass

Step 3. Rinse the shower with cold water
Sprinkle a cup of cold water over the surface of the shower stall to rinse out the cleaning solution and dirt. You will most likely need to rinse the walls several times to remove any residual product.
If your shower has a hand shower, use it instead of a cup
Part 4 of 4: Remove stubborn soap deposits

Step 1. Make a baking soda paste
Place 1 cup (170 g) baking soda in a bowl. Add a few drops of water to a bowl and stir to form a paste. Make sure the paste can be spread on and that it is sticky enough to stick to the walls of the shower.
You can apply baking soda directly to the contaminated area and then spray it with vinegar from a spray bottle. Wait 15-20 minutes and then wipe the fiberglass with a rag or sponge

Step 2. Apply the paste to stubborn traces of soapy deposits
Spread a generous amount of the paste where the soap residue remains, such as on the rim of the drip tray and around the drain hole.
Imagine spreading cream on a cake. Spread a thin layer on the paste

Step 3. Leave the paste on for 30 minutes
It takes time for the baking soda to dissolve the soap deposits. While the baking soda is drying, do not turn on water in the shower or use other cleaning products.

Step 4. Wipe down the shower with a sponge, rag or soft brush
Spray some water over the paste to moisten the baking soda. Rub the paste into the shower surface in a circular motion.

Step 5. Rinse off the remaining paste
Place a cup of water over the paste. Wipe off the baking soda with a clean rag. Rinse the rag regularly to remove any remaining baking soda. After you have washed off all the baking soda, rinse the walls of the shower stall again with cold water.
If your shower has a hand shower, use it instead of a cup
Advice
- Use any detergent that can be used on fiberglass.
- With Bar Keeper's Friend, you can remove stains from fiberglass. It is safe when used as a paste. You can order it online.
Warnings
- Avoid abrasive cleaners or hard brushes as they can scratch the fiberglass.
- Fiberglass is quite susceptible to scratches, which reduce its gloss and build up dirt over time.