How to Clean a Fiberglass Shower? – The Ultimate Guide

Eileen Martin
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Best way to clean a fiberglass shower – Natural methods

Fiberglass showers, like acrylic, tend to hold mold because the grout lines trap moisture. To get rid of mold in fiberglass, you should remove the grout. But if you can't do that because the walls are still wobbly, follow the steps bellow.

Mix 1 cup of bleach and 4 cups of lukewarm water.

Spray the mixture on the moldy spot and let it sit for 5 minutes.

While it's still wet, scrub it with a brush designed for grout.

Use a toothbrush to get into the grout lines and scrub those areas. Once the bleach dries, you may need to repeat the process.

Mix 1/4 cup of bleach and 4 cups of lukewarm water for the next application.

Gently scrub the area with a non-abrasive sponge and rinse it with plain water.

Mix together 1/4 cup of bleach and 1/2 cup of cheap hair conditioner. This will act as a non-abrasive option for scrubbing and will be easier to rinse.

Apply the mixture on the moldy area and scrub it with an old toothbrush. Rinse it with plain water.

Dry the shower with a clean towel.

Apply mold spray over the grout lines and let it dry.

Removing tough stains with lemon and borax

This is the perfect recipe for bad stains that are made out of rust, soap or lime deposits on your shower and the grout.

Why lemon? Lemon is effective for stubborn stains you can’t remove with simple soap and water. When the acid in lemons meets established stains or dirt, it attacks the surface creating a chemical reaction.

Why Borax? Borax is a common household product that you can find in your local grocery or drug store. Borax has alkaline properties that remove soap or lime-based stains and makes the lemon juice react with the existing stain even faster than just lemon alone.

How to clean your fiberglass shower?

Start by mixing a paste made of 1 cup of Borax and white vinegar, 1/2 cup baking soda and 1 cup lemon juice.

Rub the paste all over the fiberglass shower and let it sit overnight. In the morning, moist sponge soak all the mixture and wipe it clean with a towel.

How to clean hard water stains?

The longer the water dries on top of a hard water stain, the harder it becomes. To remove these types of water spots from your fiberglass shower, you will need to clean them quickly or else you will have to use a work around.

Here are a few ways to remove hard water from the shower wall:

White Vinegar Solution

Dip a soft cloth that is saturated in vinegar into a bowl of water and wring it out.

Rub the bowl of water over the stained area.

Continue wetting the cloth, wringing it out and shifting the cloth as needed until you notice the stain removing.

Sodium Percarbonate

Once you have cleaned the shower wall with the vinegar solution, you will want to go back over the area to remove any residual stains.

Combine 1/2 Cup of Baking Soda and 1 Cup of Hydrogen Peroxide and Pour the Mixture into a Bowl and Dip a Soft Cloth into the Mixture

Rub the stained area of the fiberglass shower with the wet cloth until you remove the hard water stain.

How to clean fiberglass tub with oven cleaner?

Fiberglass tubs are a classic bathroom fixture. They are both easy to clean and durable, as well as a considerable improvement over the old fiberglass showers.

But despite their popularity, fiberglass tubs are of the dirtiest bathroom fixtures. Given the fact that they are basically glass-reinforced plastic, they can’t stand chemicals and dirt.

Although some advanced fiberglass tubs are available which are resistant to mold, mildew, and bacteria, the majority of them need thorough cleaning every single week.

Therefore, keeping the fiberglass tub clean entails down and dirty work, careful maintenance, and good scrubbing. However, with the right cleaning supplies and techniques, it’s quite easy to remove hard water stains from fiberglass tubs.

I must warn you! Overenthusiastic scrubbing with abrasive products and materials may not be the best way to deal with hard water stains. Since fiberglass is actually an advanced type of plastic, you might end up ruining your hard-earned bathtub. In this guide, you will learn how to clean fiberglass tubs in an efficient and safe way.

If you are wondering how to remove hard water stains or whiten your yellowed tub, here is how you can do it.

How to clean fiberglass shower with vinegar?

Vinegar and TSP are a couple of all-around citrus cleaners that are a must for a person with a fiberglass shower. TSP is basically trisodium phosphate, an alkaline detergent that breaks down soap scum and hard water stains. Vinegar is a natural acidic cleaner that cuts grease and prevents the buildup of bacteria in the bathroom.

Mix 1 cup of white vinegar with 8 ounces of hot water, and pour the mix on the area you wish to clean. Then use a clean microfiber cloth and a little elbow grease to scrub the surface.

How to restore shine in your fiberglass shower?

One common problem you’re bound to face is the dull, dark and dingy look of your shower surface. It can happen for several reasons:

Moisture and chemicals splashing onto the fiberglass surface may leave stains that won’t come off easily.

With time and frequent use, your shower’s surface develops a layer of residues that block its natural sheen.

For a fiberglass shower to shine like new, you need to be able to remove these unsightly elements.

The best product to clean a fiberglass shower?

There are different types of fiberglass shower and either cleaning strategy may depend on which type you own. Attempting to clean a fiberglass shower with an incorrect cleaning agent can cause permanent damage and discoloration. To remove this risk, you should always be sure to read the cleaning product instructions.

If you’re looking for a reliable fiberglass shower cleaner, then use either a commercial cleaner or a homemade one and not some general purpose household cleaner like bleach because it may result in disastrous results.

You have two options in cleaning a fiberglass shower – professional cleaning or DIY.

Professional Cleaning.

The first thing you should do is look for a professional cleaning service in your area. These cleaning services are able to remove the toughest stains while keeping the fiberglass shower in pristine condition. However, they charge a heavy price but it is definitely worth the value.

DIY Cleaning.

While professional cleaning is great, it can be too expensive. This doesn’t mean you can’t do it yourself …” and you can rely on these cleaning tips and tricks to restore the fiberglass shower to a like-new condition.

Factors to Consider in DIY Cleaning

Type of Fiberglass Shower.

Frequently Asked Questions

On How to Clean a Fiberglass shower?

If you are concerned about how to clean a fiberglass shower, we can help. We will discuss everything you need to know about the maintenance of the fiberglass shower, their alternative and the process of cleaning the glass from within out. Our roundup will rank the best shower doors out there as well.

How do I know if my shower door is fiberglass?

We will start with the easiest question. If you have decided to remodel your home, your first step was probably to plan the bathrooms. It starts with a long research on bathrooms themes to follow; you probably put colors, furniture and everything else. And you are almost ready to buy everything and start building the rooms on your own.

But there is a problem. You have a fiberglass shower, and you have zero idea what to do!

Why is the fiberglass shower so popular?

The answer is simple and one word: durability. As opposed to glass that can easily crack or break, fiberglass is made to be as strong and sturdy as possible. This natural material also has the advantage of being able to be sanded down to repair cracks or chips and can be easily cleaned with just a simple wipe.

How do I keep my fiberglass shower clean?

Can you use bleach on a fiberglass shower?

Many people think “oh bleach is a disinfectant and it must be the right thing to use on glass.” However, while it is an effective disinfectant, bleach is not the best tool to keep a shower clean in the long run.

Bleach is alkaline, and since the epoxy and gelcoat of a fiberglass shower is an acid, by putting bleach on it, you are actually breaking down the finish and stripping it of the protective coating.

Not only that, but while bleach may remove dirt from a shower, it’s not the best tool for removing hard water deposits. In fact, bleach will often harden them!

To get a shower that’s sparkly clean and as the day you bought it, consider using an acidic cleaner instead of bleach. While pH-neutral products such as household cleaners, soaps, and shampoos, may be less effective in cleaning your shower, they’re better for preventing yellowing and staining.

Non-toxic cleaners, such as Murphy’s Oil Soap, work great on all surfaces on a fiberglass shower. It’s chemical-free, non-toxic, and won’t leave your shower with a scent.

Can you use a magic eraser on fiberglass?

If you own a fiberglass shower enclosure, as they are very commonly used in hotels and apartments, chances are that you need to clean it from time to time to get rid of water spots.

So, can you use a magic eraser to clean it? Definitely, no! Although many of us have never heard of fiberglass shower, many of us are using it on a daily basis.

What is fiberglass?

Fiberglass is created in the same way as fiberboard or glass wool – from molten glass which is then pressed between long steel rods. In about 10 minutes something like a fabric is formed. This feels soft and light so it is used in many ways.

Fiberglass is used in aircraft and aerospace industries, in car interiors, in appliances (washing machines, dryers), in the decorative items and, as it was mentioned above, as a shower enclosure.

Why should you not use a magic eraser?

The magic eraser works by absorbing all the dirt and grime, which later is just wiped off. This is great if you use it on, let’s say, concrete. However, if you use it on fiberglass, here is what happens – a fiberglass surface is very smooth and the magic eraser just glides over it without doing anything, it washes itself.

How do I get rid of shower grime?

It seems like grime finds a way to stick to the shower fixtures, particularly around the edges. You need something that will cut the tough grime to solve the problem once and for all. Dry to medium-grain sandpaper works well for solving the problem.

It’s a simple job that will take no more than and hour to do. You can do it in larger chunks of time over the course of a weekend. The trick to cleaning that nasty mildew and grime off of the fiberglass shower walls, is to determine which way the grime is coming off. Is it coming off easily down the slope toward the drain or is it loose in spots? This will dictate how you start your detailing process.

How do I get rid of black mold in my fiberglass shower?

Fiberglass showers have become very popular with homeowners who want to install a modern, convenient shower without spending a lot of money. However, whether you are a homeowner or an installer, you should know basic fiberglass shower maintenance practices. If you do not do proper maintenance of your fiberglass shower, you risk creating a mold problem, which can seriously damage your shower.

There are certain types of mold that contain potentially dangerous toxins. They can wreak havoc on your health and lead to respiratory problems. Black mold, the type most commonly found in fiberglass showers, is not dangerous unless it is ingested or inhaled in large enough quantities. Black mold grows best when exposed to growing conditions that are humid, warm, and dark. It can grow and spread quickly-as fast as an inch a day in optimum conditions.

You can monitor your shower for mold by observing it on a daily basis. If you see any sign of mold, scrub it immediately. If the mold covers an area larger than one third of the shower, you should consider getting a professional to do a mold inspection and inspection of the entire shower.

To learn more about mold found in fiberglass showers, read on.

Step 1: Vacuum the fiberglass Shower

Start by vacuuming the shower €” this will remove any loose particles and make mold removal easier. Otherwise, the vacuum will just spread the mold around the shower.

How do you clean a yellow fiberglass shower?

Wondering on how to clean a fiberglass shower? Fiberglass tubs and showers don’t require a specific maintenance routine, although people with fiberglass showers take cleaning a bit more seriously, because in most cases, they tend to suffer from mildew and mold growth quite quickly. And removing mold and mildew can be tricky.

When it comes to how to clean a fiberglass shower, the first thing you need to know is that this material doesn’t like bleach or vinegar, so using these harsh products on it may damage the finish of your shower and the sealant. Your best bet is using products that help clean fiberglass safely and effectively.

Cleaning your fiberglass bathtub and shower without damaging it is not an easy task for those who are new to this, so let’s look at some basic rules to follow for cleaning a fiberglass shower.

Final Verdict

You thought you have it all figured out. You understood how to clean a fiberglass shower, but you had no idea that there were some things you were missing out on.

Now that you know how to clean a fiberglass shower, it’s really important for you to also understand why you should be doing it on a regular basis.

Most harmful bacteria and chemicals that are a result of neglect and bad hygiene tend to build up in the plugholes. And it’s not just about the unsightly buildup.

The buildup of those bacteria and chemicals lead to the release into the air, which is then inhaled into our lungs.

As you can see, just by going about with your day-to-day activities without cleaning the shower plughole, you put your own health at risk.

This is why it’s important to always clean the shower plughole on a daily basis.