Best Fiberglass Shower Cleaners 2021: Tested and Reviewed

Hard water stains, soap scum, mold, mineral deposit build-up – these are the horsemen of fiberglass shower cleaner’s apocalypse. And to withstand the disaster they bring with them, help of the best fiberglass shower cleaners is a must.

But how to be sure of that? Disappointment of being left with a stained surface even after scrubbing, sometimes accompanied by toxic fume as an additional burden, is a familiar feeling to all of us when it comes to cleaner purchasing experience.

To save you that disappointment, we have listed below eight of the best fiberglass shower cleaners of 2021. Check out the reviews to find the perfect cleaner for your fiberglass shower.

Top 10 Best Fiberglass Shower Cleaner Reviews


If you want to skip reading the reviews and grab the finest fiberglass shower cleaner, check out this Scrub-Free Formula Bathroom Floor and Shower Cleaner from RMR Brands.


1. Bring It On Cleaner Hard Water Stain Remover

Obviously the best fiberglass shower cleaners OUGHT TO BE pro when it comes to fighting the stubborn hard water stains, and this is why our top pick is Bring It On Cleaner Hard Water Stain Remover. It fights against the stains like a pro, and that also while ensuring safety for all everywhere.

Not just fiberglass; pool, tubs or hot tubs, shower head, sink, taps, tiles, grout haze – you name it, this cleaner’s amazing formula can handle it all. Just spray it over any surface, and see the magic. Its expertise is not only limited to surfaces like concrete, tile or stone; rather, it’s capable of removing both water and rust stains from metal hardware like chrome, aluminum or brass.

Using oxygen bleach instead of chlorine bleach makes it a safe cleaner to use around the young members of the house. The oxygen bleach isn’t nearly as toxic chlorine, and doesn’t produce harmful fume.

Removing stains with this cleaner is super easy! Spray it over the target surface, wait a bit for the bleach to deal with the residue build-up, then scrub the spot with scrub pad or non-abrasive brush to get the stain out. Give a good wipe with a clean cloth after the scrub, and rinse the surface; the surface will look just as new!

The cleaning solution is formulated with needed agents to get rid of residue formed by substances such as mineral, calcium and limestone; which are one of the main culprits that make fiberglass, tiles or grout hazes so ugly. And as the oxygen bleach takes care of rust formation, you better believe no usual shower stain stands a chance against Bring It On Cleaner Hard Water Stain Remover.

Highlighted Features

  • Use of oxygen bleach instead of chlorine bleach in the formula makes it a safer option for house with kids and pets.
  • Can remove rust from metal along with deposits from glass, fiberglass, tiles and grout haze.
  • Doesn’t require intense scrubbing for stain removal.

2. Bio-Kleen Fiberglass Cleaner M00605

Although it says fiberglass cleaner in the name, Bio-Kleen Fiberglass Cleaner M00605 is a fantastic stain remover for any surface in the bathroom; tiles, tub, toilet and sink – you name it.

This fiberglass cleaner weighs only 1.35lbs as a whole. The product is biodegradable, so toxicity is least of your worries with it. The extended trigger is swift enough for anyone to use.

The most fantastic thing about this cleaner is, cleaning with it doesn’t get as messier as many other cleaners. Instead of liquid solution, this remover comes in the form of gel. Spray it over the surface and wait for the gel to eliminate scums, hard water stains and residue; take a non-abrasive brush or scrub pad to scrub the spot, and rinse afterwards. The cleaner is pretty quick when it comes to eliminating residue. Seeing the result, you’ll have hard time believing that there was any residue or stain on that surface even few hours ago.

The cleaner solution is animal-friendly, and hasn’t been tested on animal pre-production. Undoubtedly one of the best fiberglass shower cleaners for speedy cleaning of the most stubborn stains. Bio-Kleen Fiberglass Cleaner M00605 is primarily formulated for industrial use, so there’s no point in questioning its effectiveness in household cleaning.

Highlighted Features

  • Basically intended for fiberglass, but works on other surfaces as well.
  • Gel compound helps with less messier cleaning.
  • Features easy-to-use trigger.
  • Biodegradable nature makes the cleaner non-toxic.
  • Not tested on animals.

3. Weiman Bath Tub Cleaner – Fiberglass Cleaner for Bathrooms

Don’t let the name distract you from the amazing choice Weiman Bath Tub Cleaner is when it comes to cleaning scums, mildew, and water stains off fiberglass shower. In fact, calling it the most effective & quickest fiberglass cleaner wouldn’t be too far from the truth.

The cleaner uses liquid solution for cleaning purpose. It’s formulated mainly for ceramic and porcelain surfaces, but works great on other materials as well, including fiberglass. Whatever the stain is, dirt, deposits from minerals and soap, the formula works brilliantly to eliminate it all. Although scum-like stain is the cleaner’s specialty, it does a fine job of removing rust too. The removal job is so good, you mustn’t even dare to use it on a burnished or coated surface; yup, it’s that strong.

Cleaning with this stain cleaner is not time-consuming at all. It does a super-quick removal job. Apply on the surface, give a wipe with a clean cloth, and then rinse; it can’t get any quicker or simpler than that. However, must keep two things in mind while using this: the target surface has to be completely dry before application, and shouldn’t let the solution itself dry on the spot after application.

No need to use brush or anything bristly to remove stains with it; just simple wiping is all the formula requires. The best advantage of using Weiman Bath Tub Cleaner is, it doesn’t just eliminate the stain; even restores the color of the spot while cleaning, along with the texture.  

Highlighted Features

  • Works on ceramic, porcelain, fiberglass and metal.
  • Removes both mineral deposit and rust.
  • Scrubbing isn’t required for cleaning.
  • Can restore original color and texture.

4. RMR-86 Instant Mold and Mildew Stain Remover Spray

Mold is a great problem of bathroom and the issue is much more intense in the shower as the area gets constantly wet, and because of this, fiberglass or not, all showers need something strong that can handle even the most difficult stains to ever appear on the surface. This is where RMR-86 Instant Mold and Mildew Stain Remover Spray gets an instant approval due to the way it deals with mildew and molds, and all the other stains in fiberglass showers and porous zones.

This is a liquid spray, and pretty fast one in its field. You don’t have to take any extra preparation or mix the stuff with anything; just take the bottle and spray the solution over the targeted area. The formula is able to penetrate through the deposit build-up and mildew even from the hardly-reachable line. The hard water stains and scum on the fiber glass, not an issue for this remover spray. Give it 15 seconds after spraying and see the magic.

In fact, the cleaning spray is able to restore the new-like look of wood surfaces; so it’s not hard to guess how clean your shower will look after the application, takes only 15 seconds to destroy all build-ups, along with the irritating odor of molds and mildews.

You don’t even have to use any abrasive-brush or scrub for eliminating mildew and restoring the old, shiny look; RMR-86 Instant Mold and Mildew Stain Remover Spray does that spontaneously while cleaning without scrubbing.

Highlighted Features

  • Shows result in 15 seconds.
  • Primarily intended for mold and mildew removal, but effective on soap scum and hard water stain as well.
  • Eliminates odor from damp surfaces.
  • Able to restore old shine of targeted area.

5. Bio Clean: Eco-Friendly Hard Water Stain Remover

Among our top picks for best fiberglass shower cleaners, Bio Clean: Eco Friendly Hard Water Stain Remover is the most eco-friendly stain recover. This cleaner is here to declare war against the hard water stains; not against the environment.

Bio Clean is determined to bring you industrial level cleaning at a reasonable cost while making sure you or nothing around you is getting harmed. This is why their cleaning solutions are produced based on non-chemical formula. Same with this remover as well; it removes all difficult stains including hard water stains, mineral deposits, residue build-up, mold and scum. And works the best on fiberglass, ceramic and glass surfaces.

The solution’s not just based on non-chemical formula, it’s also biodegradable. So there’s no exposure to toxic fume any time after application.

Don’t need to go hard. It’s a liquid cleaning spray, just spray on targeted area and then let the remover take care of the issue. As soon as the solution comes in contact with the deposits and stains, it gradually separates the dirt, scum or mineral build-up. Give it a good final wipe and the area will look spotless as new. The remover is even capable of eliminating rust from metal parts.

This spray’s most amazing is the pleasant smell its leaves after the job it’s done! Even the old odor from the irritating damp environment will also be long gone, that’s the privilege of using non-chemical cleaner for dealing with deposits. A clean shower with a really nice smell, minus the toxicity of chemicals; that’s Bio Clean: Eco Friendly Hard Water Stain Remover in a nutshell.

Highlighted Features

  • Intended for hard water stain removal.
  • Biodegradable, non-chemical compound.
  • Dry-cleaning solution; for fiberglass, glass and ceramic-like clay surfaces.
  • Works on rust as well.
  • Eliminates odor and leaves with a decent fragrance.

6. Bio-Clean Products Eco-Friendly Shower Cleaner

Our next best hard water stain remover is for them who wants the same awesomeness of eco-friendly Bio Cleaner like above but in a lower cost and would go for non-liquid option. Bio Clean: Eco Friendly Hard Water Spot Remover is exactly the best fiberglass shower cleaner they should have for their fiberglass shower, and the rest of the bathroom, and other parts of the house.

The best attribute of this remover is obviously the fact is it removes the spot without emitting any toxic fume or substances. Produced from non-chemical compound, and biodegradable, so getting in reaction with stains and soil substances takes place in all very organic way.

The remover comes in the form of cream, which helps with a quick separation of stain or deposit from the surface, regardless of the nature of the deposit origin. Must rinse the area after wiping off the cream agent. After rinsing, you’ll have hard time recognizing the area; the solution is capable of restoring even year-long glaze of tiles, glass, fiberglass, ceramic and metal.

The biodegradable formula washes off the stinky odor along with the stain. And the remover itself comes with a refreshing hint of mint, so that’s a splendid bonus. No toxic fume, fresh mint aroma everywhere!

Just when you would think strong chemical compound is an obvious necessity for separating sublime, mineral deposits, scums and mildew; the minty-fresh cleanliness of Bio Clean: Eco Friendly Hard Water Spot Remover brilliantly proves you wrong. (And you obviously don’t mind being wrong in this case)

Highlighted Features

  • Biodegradable, non-chemical formula.
  • Comes in form of cream, requires rinsing for proper cleaning.
  • Cleans both mineral deposits and rust from ceramic, porcelain, glass, fiberglass and metallic surfaces.
  • Eliminates odor from targeted area, leaves pleasant mint fragrance.

7. Rejuvenate Scrub Free Soap Scum Remover

Removing soap scum is a tricky job, especially when material like ceramic or fiberglass is involved, so your shower cleaner has to be pretty good to be able to take down the nasty soap deposits off the surfaces without making you dance like a maniac……or scrub like your life depends on it. Needless to say, scrubbing doesn’t do much if the cleaner hasn’t got what it takes to beat those scum spots. And Rejuvenate Scrub Free Soap Scum Remover certainly has got it.

The remover doesn’t contain bleach, which is a good news as there’s no chance for toxicity or harmful fume after application. This fascinating cleaning formula works on almost all materials; especially, does a great cleaning job on fiberglass, glass and metal surfaces. The solution is fragrance-free, the after-effect is definitely a delight for all users.

Cleaning with this remover is like a child’s play. Spray it over the scum, wait for three minutes or so, and then rinse the surface thoroughly. Yes, not even wiping is required to get the desired result, let alone scrubbing.

Such easy application, and that quick of a satisfying result; Rejuvenate Scrub Free Soap Scum Remover definitely takes the crown for best soap scum remover.

Highlighted Features

  • Intended for soap scum removal.
  • Doesn’t contain bleach.
  • Non-abrasive cleaning method; shows effect after three minutes of application.

8. Drill Brush Attachment – Bathroom Surfaces Tub, Shower, Tile and Grout All Purpose Power Scrubber Cleaning Kit

And last but not the least, how can the best fiberglass shower reviews be complete when there’s no review for scrubbing brush? Not to worry; with Drill Brush Attachment – Bathroom Surfaces Tub, Shower, Tile and Grout All Purpose Power Scrubber Cleaning Kit, we got you covered.

Three brushes are included in the kit. All comes with nylon bristles with medium stiffness to them, which makes the brushes the perfect scrubbing commodity as the nylon doesn’t scratch the spot and works greatly on fiberglass and other similar materials.

First we have the bullet-shaped original brush, its bristles can go further into any corner. Then we have 4 in 1 action brush for scrubbing non-textured, smooth surfaces. The third brush is for the opposite, it sweeps away debris and bits of soap, and scrubs the textured area.

Using these brushes might seem complicated at first, but actually the technique is quite simple. Take the cordless drill you have at home (or separately purchase for utilizing the kit), attach the quarter inch shafts of the scrubbing brushes from the kit, and start cleaning by turning the drill on. Yes, this is the best part about these brushes, hand motion is not quite required, the drill takes care of it.

Drill Brush Attachment – Bathroom Surfaces Tub, Shower, Tile and Grout All Purpose Power Scrubber Cleaning Kit is easy to use, has options for all sorts of scrubbing, and is put together to handle the surfaces with care. Best Multipurpose scrubber? This one surely is!

Highlighted Features

  • Three brushes for separate cleaning of flat, textured areas, and corners.
  • Semi-stiff nylon bristles for scratch-free thorough scrubbing.
  • Built to use with cordless drill.

Conclusion

So, with the scrubber kit, we have reached the end of our best fiberglass shower cleaner reviews. Our goal was to make a complete list of every cleaning need; by including cleaners that are liquid, some are not; spray and bottles; of both chemical and non-chemical compound; even brushes, so that everyone can have something they’re looking for while searching for the best fiberglass shower cleaners. With such wide variety of choices, restoring that old shine of your fiberglass shower won’t be a very difficult task.

The options are all there! Make the decision.

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