Best Cleaner for Fiberglass Tub in 2021: What Products to Buy and How

best cleaner for fiberglass tub

Last Updated on July 7, 2021

It’s been a long week at work, and all you want to do is kick off your shoes and read a book while relaxing in your bathtub. But then, you look at it and it’s filled with annoying stains that just won’t come off. We’ll let you in on the best cleaner for fiberglass tub, which is exactly what you need.

You’ll never believe how easily you can wipe off those stains and discolorations. You’ll be back doing “me” time in no time. That’s a promise!

Best Cleaner for Fiberglass Tub for 2021 Review: Key Features, Pros, and Cons

You can find 10 of the best products for the job below. Each one specializes in a certain aspect of cleaning your fiberglass tub. From removing molds to getting rid of hard water stains and getting rid of fingerprints and scratches, you can find them in the table below.

ImageBrandRemovesVolumeIdeal forIdeal forPrice
BEST OVERALL
Rolite fingerprints, dust, scratches, and other marks16 ozwindows, glass, bathtubs, plastic, carbon fiber, aluminum, and fiberglassPacks of 1, 2, 6, and 12
PREMIUM PICK
Bring it On CleanerRust, limestone, magnesium, calcium, and hard water stains32 ozglass, toilet, shower, bathtub, tiles, Pack of 2
BEST VALUE
Rejuvenate soap scum128 ozglass, ceramic tiles, stone, plastic, porcelain, and fiberglassPack of 1
Weiman rust, soap scum, and limescale16 ozfiberglass bathtubs, jacuzzis, ceramic and porcelain tiles, boats, sinksPack of 1
Green Gobblerrust, iron stains240 oztoilets, tiles, shower floors, sinks, and bathtubsPack of 6
CloroxMold, mildew, bacteria, fungus32 ozFloor, bathtubs, sinks, tiles, showerPacks of 1, 2, or 3
Chomp!hard water stains, calcium, 32 ozFiberglass, glass, tiles, bathtub, sinks, granite, chrome, stainless steel, aluminum, porcelain, ceramic, quartz, granitePack of 1
C.R. Laurencewater, mineral, rust, soap scum, and mildew16 oztiles, shower doors, fiberglass, porcelain, chrome, and stainless steelPack of 1
Jelmarcalcium, lime, and rust28 ozcoffee pots, tiles, toilets, bathtubs, and sinksPack of 1
Bar Keepers Friendmineral stains, oil residues, grime, rust stains25 ozstainless steel, porcelain, tiles, copper, aluminum, ceramic, brass, glass, chromePack of 4

1. Rolite Streak Free Formula

BEST OVERALL

Read Customer Reviews Here »

We chose this product as best overall for its versatility. Plus, it’s so easy to apply. This is one of the staple cleaners I personally cannot live without.

The product rids a multitude of surfaces of many kinds of dirt. It’s odor-free and it polishes the surfaces it cleans. It provides the best price for the most features.

Our Observations

Highlighted Features:

  • Serves 3 functions: clean, recondition, and protect
  • Easy application
  • Multi-surface use

Pros:

  • It does not leave behind any streaks or residue when used on surfaces.
  • It cleans and polishes plastic, stainless steel, fiberglass, and more.
  • This cleaner leaves a protective coating on your tub’s surface that also leaves it gleaming.
  • Surfaces are rid of fingerprints, scratches, and dust.
  • The Rolite Streak Free formula is made in the USA.

Cons:

  • You may need other cleaners for the rest of your toilet.

2. Bring It On! Minty Tub Cleaner

PREMIUM PICK

Read Customer Reviews Here »

The product is specially tailored to get rid of hard water stains. It can clean a variety of surfaces, including your sooty fireplace. It’s pricier, but it compensates by doing its job exceptionally.

Our Observations

Highlighted Features:

  • Minty scent
  • Powered by oxygen bleach
  • Removes stains from almost all hard surfaces
  • Gets rid of hard water stains
  • Can also be used to clean your fireplace

Pros:

  • When we tested it, the product cleaned our shower floor of soap scum with almost no effort.
  • We also used it to clean dirty glass which other products struggled to try to clean.
  • The product cleans fiberglass tubs exceptionally well, with little effort.
  • It gets rid of hard water stains on the floor that usually takes hours of scrubbing to get rid of.
  • What works for the tub practically works for any other surface in your toilet and bath.

Cons:

  • It has a bit of a tough time handling hard water stains on glass doors.
  • This product is slightly above the average price for fiberglass cleaners.

3. Rejuvenate No Scrub Formula

BEST VALUE

Read Customer Reviews Here »

Just spray and rinse. No need to scrub. This product is most effective when used on fiberglass and ceramic materials. It is the cheapest option for the most features, giving you the best value for your money.

Our Observations

Highlighted Features:

  • Bleach free
  • Streak-free finish
  • Effective on fiberglass, and ceramic tiles
  • Can also be used on stone, chrome, porcelain, and plastic surfaces

Pros:

  • The product gets rid of soap scum on a shower floor without even needing to scrub.
  • It also gets rid of mineral stains that other products struggle to remove.
  • Our 3-year old white bathtub looks brand new after using this cleaner.
  • This product does not have the toxic scent that other cleaners in the market have.
  • It works especially well on fiberglass and tiles.

Cons:

  • Tougher stains may still require light scrubbing to wipe off.
  • Discolorations may come off after cleaning a few times.

4. Weiman Non-Abrasive bathtub cleaner— Best for Bathtubs

Read Customer Reviews Here »

This product is most effective on fiberglass, porcelain, and ceramic materials. What we like about it best is that it’s the kind of cleaner you can use all around your bath and on similar surfaces around your home. That’s value for every drop.

Our Observations

Highlighted Features:

  • For hard water spots
  • Use on bathtubs, shower doors, floors, sinks, toilets, and more
  • Instantly removes soap scum and other stubborn stains
  • Non-abrasive

Pros:

  • The product removes rust, soil, film, and other residues easily.
  • It removed year-old stains with a little scrubbing.
  • We didn’t pick up any toxic odor during use.
  • This cleaner got rid of years of discoloration on our shower floor.
  • It loosens up the dirt so much you don’t need to scrub too aggressively.

Cons:

  • You may need a separate cleaner if you for bath accessories made of metallic and aluminum materials.

5. Green Gobbler Rust Remover— Best Powder Cleaner

Read Customer Reviews Here »

This product makes use of a different formula. Instead of a liquid substance, it is a powder that you mix with water. It specializes in removing mineral stains from different types of surfaces, including fiberglass.

Our Observations

Highlighted Features:

  • Simply pour in a pack, let it sit, and flush
  • Biodegradable formula
  • Use on bathtubs, toilets, sinks, and shower floors
  • Removes rust and iron stains
  • Comes in 6 pre-measured packs

Pros:

  • The product removes mineral stains effortlessly.
  • It removed leftover rust in the bottom of one of our toilets.
  • It also removes hard water stains on hard-to-reach areas.

Cons:

  • The powder can dry up and harden inside the packet.
  • You have to make sure to empty into an airtight container once opened.

6. Tilex Clorox Trigger Spray — Best for Spot Cleaning

Read Customer Reviews Here »

This product works on fiberglass, ceramic, and plastic. It specializes in removing molds and mildew from your bathtub or toilet. During trial, it effectively lifted and eliminated stains within a few minutes. We simply sprayed, leave on, then rinsed.

Our Observations

Highlighted Features:

  • Removes stains
  • Gets rid of mold, bacteria, and mildew
  • Kills 99.9% of bacteria on a unit
  • Gets rid of soap scum effortlessly
  • Use on fiberglass, ceramic, vinyl, and plastic

Pros:

  • It effectively gets rid of mold and mildew stains.
  • The spray application makes spot cleaning easier.
  • The product uses a spray for easy application.
  • It can be used to clean your bathtub, shower, floor, and sink

Cons:

  • It might be more expensive if you need to clear out larger surfaces.

7. Chomp Hard Water Repellant— Best in Versatility

Read Customer Reviews Here »

This product can be applied to almost any surface. That means it’s easy on the budget and that’s why we highly recommend it. Spray on application also makes it great for spot cleaning surfaces. We like how it can easily tackle stains in hard-to-reach areas.

Our Observations

Highlighted Features:

  • Gets rid of hard water stains, soap scum, and mineral stains
  • We like that this product is just as good for cleaning tabletops made with granite and chrome.
  • Polymer helps easily lift and eliminate residue.

Pros:

  • This product can be used on a shower, tub, floor, sink, and toilet
  • It is odor-free, allowing you to breathe and not inhale toxic fumes.
  • Easy application — just spray, wipe, and rinse.

Cons:

  • It works very well but may leave a slippery surface so be careful.
  • The product may have to be rinsed several times to be completely washed away.

8. Bio-Clean Stain Remover— Best for Water Stains

Read Customer Reviews Here »

This product specializes in removing hard water stains. So if water at your home does not come from a treated source like from a deep well, this is the kind of cleaner you need to get the job done. Use it for fiberglass, chrome, and stainless steel surfaces. We bet you’ll be pleasantly surprised at the gleaming results.

Our Observations

Highlighted Features:

  • Removes water and mineral stains
  • Works on glass and other surfaces
  • Gets rid of corrosion

Pros:

  • The product works on fiberglass, porcelain, tiles, chrome, stainless steel.
  • Mildew, rust, and soap scum are tackled well without much effort.
  • It does not leave any streaks behind when applied.

Cons:

  • It may take several applications before years-old hard water stains are cleared completely.
  • You may need other products to use for sinks made with granite and quartz.

9. CLR Calcium, Lime, and Rust Remover— Best for Mineral Stains

Read Customer Reviews Here »

This product gets rid of calcium, lime, and rust stains. It can be used for your bathroom or kitchen surfaces. That makes it a great spend and would easily become a household staple. It specializes in ridding almost any surface that requires regular cleaning of mineral stains. We tried this one on a kitchen sink made with fiberglass and a stained porcelain cup. Both ended up looking brand new after about three repeated applications.

Our Observations

Highlighted Features:

  • Dissolves calcium, lime, and rust
  • Removes limescale from tubs, toilets, pots, and coffee pots
  • Works on brick, porcelain, chrome, metal, and stucco

Pros:

  • The product is safe to use on copper and plastic materials.
  • It does not struggle with any mineral stains, even ones that are really old.
  • It also works exceptionally well against hard water stains.

Cons:

  • However, it underperforms a bit when pitted against rust.

10. Bar Keepers Friend Foam Trigger Spray— Best for Metal Surfaces

Read Customer Reviews Here »

We thought this product deserved a spot in this best cleaner for fiberglass tub list because of its versatility. Not only can it be used for fiberglass tubs but also for metal surfaces. That includes steel, brass, and aluminum. You’re in for satisfying cleaning results as you find it also gets rid of mineral deposits as well as everyday dirt and grime.

Our Observations

Highlighted Features:

  • Gets rid of mineral deposits and grime
  • Removes oil, rust, and hard water stains
  • Comes in a pack of 4

Pros:

  • The product removes mineral stains, especially rust, very well.
  • It gets rid of hard water stains easily on any surface, but especially porcelain.
  • It cleans stainless steel, tile, brass, chrome, porcelain, aluminum, and glass.

Cons:

  • You will need another cleaner to wipe off ceramic tile surfaces.

best cleaner for fiberglass tub

Best Fiberglass Tub Cleaner for You: A Buying Guide

Not every cleaning product is the same. Despite what the manufacturers and the labels would lead you to believe, they don’t really clean every type of stain or dirt that’s plaguing you. Most importantly, not every cleaner is will do your bathtub any good. If you’re not careful, you might unknowingly use one that damages your expensive tub!

Surface

Most cleaning formulas work better on certain surfaces than on others. For example, the Rolite Streak Free Formula works well on fiberglass, stainless steel, and plastic, but it doesn’t work well on acrylic surfaces. Bring it on! Minty Tub Cleaner is good for cleaning fiberglass but is mediocre when used on ceramic floors.

Make sure to check which surface you want to use your product on. If your product doesn’t work well with a certain surface, don’t just try to force it to work by scrubbing hard. Trust us, we tried that, and we ended up with more scratches on our fiberglass tub than when we started.

So, if you have a fiberglass tub like we do, make sure you don’t make the same mistake. Choose only a surface cleaner that explicitly states it’s good for use on fiberglass. Of course, product performance is still bound to vary.

Size and Amount

Another factor to consider when looking for the best cleaner for bathroom fiberglass shower/tub would be the quantity you’re getting per package. How many ounces do you really need to clean your bathtub and/or your shower? Are you looking to clean the entire tub or toilet? Or, you just want to spot clean specific spots showing stains or discoloration?

Rejuvenate No Scrub Formula has 128 ounces of shower cleaner. The average shelf life of a shower cleaner is 2 years. Assuming you clean your shower once a month, and that your shower is 2×2 square meters, that would take you about 3 years to get through your whole bottle! That’s a third of your shower cleaner wasted!

Suit your product to your needs. Bigger isn’t always better. Sometimes, bigger can mean wasted shower cleaner and wasted money.

What does the cleaner get rid of?

Before dishing out your money for the best cleaner for fiberglass shower tub, ask yourself: what does this product actually get rid of?

Some products specialize in getting rid of minerals, such as the CLR Calcium, Lime, and Rust Remover. This product gets rid of calcium, lime, and rust. However, it underperforms when used to get rid of hard water stains. Pick your product accordingly with what it is formulated to get rid of.

Frequently Asked Questions

Q: What are some alternatives to cleaning a fiberglass tub?

You may use products that are readily available at home to clean your fiberglass tub. Vinegar is a good and safe alternative to commercial cleaning products. You may use it for general cleaning of your fiberglass bathtub. But, you’ll probably need a product more specifically formulated if you want to take out stains or clear discolorations.

First, you need to spray your bathtub’s surfaces with vinegar. Then, sprinkle baking soda on the fiberglass tub and spread it using a sponge. Lastly, rinse your bathtub using water to get rid of any remaining vinegar or baking soda. If you don’t have any vinegar available at home, you can also use mild dishwashing soap as an alternative.

Double rinse your fiberglass bathtub again with cold water to get rid of the smell of vinegar some more. Dry with a microfiber cloth.

Q: Are there any cleaning products I need to avoid when cleaning my fiberglass bathtub?

Avoid using abrasive products such as scouring powders, steel brushes, and hard sponges. All of which can damage and leave permanent scratches to your fiberglass bathtub.

Q: Is there an easier way to clean my fiberglass tub that won’t require scrubbing?

Start by using a hot shower to rinse your bathtub. The hot temperature softens up the dirt, which allows you to just wipe it right off. This is important because you don’t want to scrub your fiberglass tub.

Apply any of the products we’ve included in this review. Follow manufacturer’s instructions closely. Use a microfiber cloth to apply and rinse off the products. Apply the product of your choosing repeatedly if necessary.

Q: Should I mix products together?

Never mix different products together. We get it, it’s frustrating, especially if the products aren’t working as well as you expected.

But, mixing chemicals can cause unintended reactions that might damage your fiberglass tub. Always refer to cleaning instructions on the label and follow down to the tee.

Conclusion

Now you need to select the best cleaner for fiberglass tub that best suits your cleaning requirements. Remember to refer to our buying guide to help you make a smart decision. One that won’t just help you achieve a squeaky clean tub but, more importantly, help you keep it in tiptop condition for many more years to come.

 

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