How to Clean Fiberglass Tub With Oven Cleaner?

You’re probably wondering how to clean a fiberglass tub with an oven cleaner. You’re in luck because that’s what we’ll teach you.

Follow these simple steps, and your fiberglass tub will look and smell brand new in no time!

How to Clean Fiberglass Tub With Oven Cleaner?

What You’ll Need

You’ll need a few supplies to get started:

  • An oven cleaner of your choice
  • Rubber gloves
  • A bucket
  • A scouring pad
  • A rag

First, put on your gloves. Then, fill the bucket with enough hot water to cover the tub. Add the oven cleaner and stir to combine. Dunk the scouring pad in the cleaner and start scrubbing the tub. Rinse it off with hot water as you go. When you’re finished, rinse the area with hot water and wipe it down with a clean rag.

Preparing for Cleaning

Before you start, it’s important to gather the supplies you’ll need: oven cleaner, gloves, a bucket, ammonia, hot water, and a scrub brush.

It’s also a good idea to have some ventilation in the room, as the oven cleaner can be quite potent. And finally, make sure that the tub is empty before you start cleaning.

Cleaning the Tub With Oven Cleaner

You will need the following:

  • oven cleaner
  • bucket
  • sponges
  • scouring pad
  • Fill a bucket with hot water and dish soap. Add the oven cleaner and stir to combine.
  • Dunk a sponge into the mixture and scrub the tub. Rinse the sponge and continue scrubbing until the tub is clean.
  • Rinse the tub and wipe it down with a scouring pad to remove any leftover oven cleaner residue.
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Rinsing and Drying the Tub

After you have finished scrubbing and washing down the tub, the next step is to rinse off the oven cleaner. 

Do not worry about leaving any residue, as this will dry up. However, giving it a thorough whole-tub rinse is still important so you do not experience stinging sensations when you get in the tub later.

Once you finish this step, make sure to dry the tub completely. The easiest way is to use a microfiber cloth or a squeegee. You do not want any streaks or water droplets, so take your time and use slow, steady strokes to get rid of all the moisture.

And for those extra tough spots, a hairdryer can also be used. Use a low setting and hold it about a foot away from the area that needs drying and watch as those tough spots disappear before your eyes!

Follow Up Tips & Considerations

After your fiberglass tub has been cleaned with oven cleaner, you can take a few extra steps to ensure it stays in good shape.

First, use a plastic scrubbing pad to buff the surface of your tub. This will help remove any remaining particles of the cleaner and restore its shine. To keep it looking nice, dry the surface with a soft cloth after every use.

Also, be sure to check your oven cleaner container for any specific instructions on how to clean fiberglass tubs. This will give you an idea of what works best for your particular brand and product type. 

And if you’re worried about fumes, make sure you open windows or turn on a fan while you’re cleaning, which is always a good practice when working with strong chemicals like oven cleaners.

FAQs on Cleaning Fiberglass Tub With Oven Cleaner

The first thing you should know when cleaning your fiberglass tub with an oven cleaner is always to use it cautiously. 

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Oven cleaner is an extremely powerful chemical, which can cause serious damage if not careful. So make sure you always read the instructions on the label before using it.

Also, use rubber gloves and eye protection when working with oven cleaners, and ensure you’re in a well-ventilated area. Additionally, oven cleaner is not recommended for colored fiberglass surfaces, as it can cause discoloration and staining.

Then there are safety considerations; oven cleaners should never be ingested or used on wood surfaces or near food items. 

Finally, keep in mind that oven cleaner will remove grease and grime but won’t eliminate mold or mildew from your tub. If you need help tackling those issues, I suggest consulting a professional.


So, if you’re in a bind and don’t have any other cleaning supplies, an oven cleaner can be a decent solution to clean your fiberglass tub.

Just be sure to take the necessary precautions to protect yourself, and test the oven cleaner in a small, inconspicuous area before you start cleaning your entire tub. With a little bit of elbow grease, your fiberglass tub will look new in no time!

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