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What should you not use on a fiberglass tub?

Published in Fiberglass Care 3 mins read

To protect your fiberglass tub and maintain its appearance, you should never use super abrasive scrubbers or cleaning agents, avoid bleach, and refrain from mixing different ready-made cleaning products.

Protecting Your Fiberglass Tub

Fiberglass is a durable yet sensitive material often used for bathtubs due to its lightweight and smooth finish. However, its surface can be susceptible to damage from harsh chemicals and abrasive cleaning tools. Understanding what to avoid is crucial for extending the life and preserving the pristine look of your fiberglass tub.

Avoid Abrasive Cleaners and Tools

One of the most critical things to avoid on a fiberglass tub is anything that can scratch or dull its surface. This includes:

  • Super Abrasive Scrubbers: Materials like steel wool, harsh scouring pads, or even stiff-bristled brushes can easily create micro-scratches on the fiberglass. Over time, these scratches can accumulate, making the surface appear dull and more prone to staining as dirt gets trapped in the grooves.
  • Abrasive Cleaning Agents: Powdery cleansers that contain abrasive particles, or highly acidic/alkaline cleaners, can strip away the gel coat (the shiny protective layer) of the fiberglass. This can lead to permanent damage, making the tub look worn and discolored. Always opt for cleaners specifically designed for fiberglass or non-abrasive, gentle solutions.

Steer Clear of Bleach

While bleach is a common household disinfectant, it is not suitable for fiberglass tubs. Bleach can be too harsh for the material, potentially causing:

  • Discoloration: Regular use of bleach can lead to yellowing or fading of the fiberglass, especially lighter-colored tubs.
  • Surface Degradation: The strong chemicals in bleach can break down the resin in fiberglass over time, making it brittle or porous.

Never Mix Cleaning Products

A golden rule for any cleaning task, especially with specialized surfaces like fiberglass, is to never mix different ready-made cleaning products. Combining chemicals, even those seemingly benign, can lead to:

  • Dangerous Fumes: Certain combinations can create toxic gases that are harmful to breathe.
  • Ineffective Cleaning: Mixed solutions might neutralize each other, making them less effective, or even create residues that are difficult to remove.
  • Damage to the Tub: Some chemical reactions resulting from mixing can produce corrosive substances that can severely damage the fiberglass surface.

What Not to Use: A Summary

For a quick reference, here's a table outlining the key items you should never use on your fiberglass tub:

Category Specific Items to Avoid Reason for Avoidance
Abrasive Cleaners/Tools Steel wool, harsh scouring pads, stiff brushes, abrasive powders, highly acidic/alkaline cleaners Can scratch, dull, or damage the surface; remove gel coat
Harsh Chemicals Bleach Causes discoloration, surface degradation, and brittleness
Mixed Cleaning Products Any combination of different ready-made cleaners Creates dangerous fumes, ineffective results, or tub damage

Always remember to read the labels of any cleaning products you intend to use and follow their instructions carefully, ensuring they are safe for fiberglass surfaces.