Cleaning & Refinishing: How To Care For Every Type Of Bathtub

Expert Tips To Restore & Maintain The Shine Of Your Tub

A bathtub is more than just a place to get clean—it’s where many of us unwind, recharge, and find a few quiet moments in the day. But nothing ruins that experience faster than dull stains, scratches, or a surface that has lost its shine. The truth is, not all tubs are created equal, and the way you clean and care for them depends entirely on the material they’re made of. 

Acrylic, porcelain, fiberglass, cast iron, or even stone require different approaches to keep them looking new. With the right cleaning routine and occasional bathtub refinishing, it’s possible to extend a tub’s lifespan and preserve that spa-like feel at home. This guide breaks down how to care for every type of bathtub, so keeping it fresh and inviting becomes simple.

a clean bathtub

Overview Of Common Bathtub Materials

When shopping for or maintaining a bathtub, it helps to know what it’s made of since each material has its own strengths and care needs. Here are the most common bathtub materials:

Acrylic

Lightweight, affordable, and available in many shapes and colors. Acrylic tubs are non-porous, which makes them resistant to mildew and easy to clean. However, they can scratch or lose their shine if abrasive cleaners are used.

Fiberglass (FRP)

One of the most budget-friendly options. Fiberglass tubs are easy to install and repair but less durable than acrylic, and they are often prone to scratching and fading over time.

Porcelain-Enameled Steel

Made from a steel base coated with porcelain enamel. These tubs are glossy, easy to clean, and resistant to many chemicals, though they can chip if something heavy is dropped on them.

Enameled Cast Iron

A premium choice known for its durability and ability to retain heat. These tubs have a heavy enamel coating that resists scratching and staining but require reinforced flooring due to their weight.

Cast Polymer ( Marble, Granite, Or Onyx)

These tubs mimic the look of natural stone but at a lower cost. They’re sleek and stylish but can be brittle, with the gel-coat surface prone to cracking if not properly maintained.

Stone, Copper & Stainless Steel

Less common but highly decorative. Stone tubs offer a natural, spa-like feel but require sealing and special cleaners. Copper develops a unique patina over time and resists bacteria naturally. Stainless steel is durable, modern-looking, and easy to sanitize.

General Bathtub Cleaning Principles For Longevity & Shine

No matter the type of bathtub, some universal cleaning practices help maintain its appearance and extend its lifespan. The key is to keep surfaces free from buildup without causing damage. Always start with mild, non-abrasive cleaners and avoid harsh chemicals or rough scrubbing pads as they can dull finishes, scratch surfaces, or weaken protective coatings. A soft sponge or microfiber cloth works best for routine cleaning.

Rinsing thoroughly after every wash to prevent soap scum, hard water stains, and residue from lingering. If your home has mineral-rich water, wipe the tub dry with a clean towel to reduce spotting and buildup. It’s also smart to test new cleaning products on a small, hidden area before using them on the whole tub.

Regular upkeep is more effective than deep, infrequent scrubbing. A quick weekly clean keeps stains from setting in, while monthly deep cleaning ensures the tub remains fresh and sanitary. Remember to ventilate the bathroom during and after cleaning to prevent mold and mildew growth around the tub area.

Material-Specific Cleaning & Refinishing Tips

Here’s what you need to know about the cleaning requirements and bathtub refinishing options for the different types of tubs:

Acrylic & fiberglass

To clean acrylic and fiberglass bathtubs, use a soft cloth or sponge with a mild, non-abrasive cleaner. Avoid scouring pads to prevent scratches and dullness. Minor scratches or dull spots can often be remedied with an acrylic repair kit. If the surface becomes faded, professional refinishing can restore its smooth, glossy look.

Porcelain-Enameled Steel &  Cast Iron

Both options feature a durable enamel coating that resists many stains and scratches. Regular cleaning with gentle, non-acidic cleaners keeps the enamel intact. Avoid abrasive powders that can chip the finish. For minor chips, porcelain touch-up kits work well. For larger damaged areas, professional reglazing may be necessary. 

Cast iron tubs, in particular, can last a lifetime if their enamel surface is properly maintained and refinished when wear becomes noticeable.

Cast Polymer

These tubs mimic natural stone but require delicate care. Use pH-balanced, non-abrasive cleaners to prevent damage to the gel-coat surface. Never use vinegar, bleach, or harsh scrubbing pads, as they can dull the shine or cause cracks. Bathtub refinishing should be left to professionals, as resurfacing the gel-coat can restore luster while preventing deeper damage from spreading.

Stone (Natural), Copper, Stainless Steel & Composites

  • Stone (natural): Regularly seal surfaces to prevent water absorption and staining. Use stone-safe cleaners and avoid acids.
  • Copper: Maintain its natural patina or polish it to keep a bright finish, depending on preference. Use gentle, non-acidic cleaners only.
  • Stainless Steel: Clean with a microfiber cloth and mild detergent, then buff dry to prevent water spots. Specialized stainless steel polish can restore shine.
  • Composites: Follow manufacturer’s care instructions closely. These blends vary, but most benefit from gentle cleaners and occasional polishing to retain their finish.

Should You Refinish Or Replace Your Bathtub? 

Over time, even the best-maintained bathtub can show signs of wear. Refinishing is often the first step if the tub’s surface has minor scratches, stains, or a dull finish because this process can restore its shine, seal any small imperfections and extend the tub’s life without expensive replacements. 

However, if the damage goes deeper (such as cracks in fiberglass, widespread enamel chipping, or structural weakness) it may be better to replace the tub altogether. 

A good rule of thumb: refinish for surface issues, replace for structural damage.

Preventative Bathtub Care for Extending Your Tub’s Life

The easiest way to keep a bathtub looking new is through small, consistent habits. Here are a few tips for that: 

  • Protect the surface: Use a bath mat or soft padding to prevent scratches and chips from dropped objects.
  • Rinse and dry: After each use, rinse the tub and wipe it dry to avoid soap scum, hard water stains, and residue.
  • Control humidity: Run an exhaust fan or open a window to reduce moisture and keep mold and mildew from forming.
  • Consistent upkeep: Keep these small daily habits in mind to reduce the need for frequent refinishing or costly repairs.

Get More Help From The Experts

With regular upkeep and a little preventative care, tubs can stay spotless and inviting for years. But when scratches, chips, or dull surfaces take away the comfort of your bathroom, refinishing is the smart solution.

If you’re looking for the best approach for your bathtub, don’t hesitate to contact our bathtub refinishing company in Arizona at Todd’s Bathtubs. We specialize in repairing and restoring your bathtub to its former beauty. We specialize in restoring fiberglass and porcelain tubs, repairing cracks and other surface damage. 

We can also convert or upgrade your tub with items like safety grab bars or shelves to get the functionality you need. Contact us in Arizona to get more information about bathtub refinishing or to discuss your bathtub restoration needs.

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TODD’S BATHTUBS
1829 S Horne #14,
Mesa, AZ 85204
Office: 480-835-7070
Email: [email protected]