Category : Bathtub Material

The Ultimate Guide to Refinishing a Fiberglass Tub

Is your fiberglass tub showing signs of wear and tear, but the idea of replacing it seems daunting? Consider refinishing as a budget-friendly alternative. With refinishing, you can revitalize your tub’s appearance without the hassle of a complete renovation. Enjoy a refreshed bathroom aesthetic and save money while reducing environmental impact. Refinishing your fiberglass tub offers a convenient and eco-friendly way to upgrade your space, making it a smart choice for both your wallet and the planet.

Step-by-Step Guide:


Start by removing any hardware from plumbing fixtures to facilitate the refinishing process. Thoroughly clean the fiberglass tub to remove dirt, grime, and soap scum using a non-abrasive cleaner and scrub brush. Etch the surface and sand it with fine-grit sandpaper to create a rough texture for better adhesion of the new finish. Clean the tub again with a tack cloth to remove any dust or debris before proceeding. Priming and Coating:

Apply a fiberglass primer as directed by the manufacturer to ensure proper adhesion of the topcoat. Use a spray gun or brush to apply the topcoat evenly, following the manufacturer’s instructions for optimal results. Allow the finish to cure for the recommended time before using the tub to ensure durability and longevity.

Materials and Tools:

From bathtub refinishing kits to safety gear, gather all the necessary materials and tools for a smooth refinishing process. Choosing high-quality products ensures professional-grade results.

  • Bathtub refinishing kit: Choose a reputable brand like the Homax Tub & Tile Refinishing Kit.
  • Epoxy resin with hardener: Included in many DIY kits for added durability.
  • Etching powder: Essential for preparing the surface for refinishing.
  • Primer and topcoat: Specifically designed for fiberglass surfaces.
  • Abrasive cleaner, tack cloth, and tub-and-tile caulk: Necessary for cleaning, prepping, and sealing the tub.
  • Safety gear: Gloves, protective eyewear, and a respirator to protect against harmful chemicals and fumes.
  • Importance of Surface Preparation: Proper surface preparation is crucial for ensuring the longevity and durability of the new finish. It creates a clean and smooth surface for the coating to adhere to, reducing the risk of peeling, chipping, or flaking.

Additionally, it allows for the identification and resolution of underlying issues such as cracks or structural irregularities.

Repairing Cracks:

Properly addressing cracks in your fiberglass tub is crucial for achieving a seamless finish. This involves meticulous cleaning, filling, and sealing to restore its integrity. Begin by cleaning and drying the affected area, followed by sanding and applying fiberglass filler. Finally, seal the repaired area with epoxy for a seamless result

Choosing the Right Paint:

Choosing the suitable paint for refinishing your fiberglass tub is crucial for achieving both durability and aesthetic appeal. Factors such as resistance to water and chemicals, as well as ease of application, should be carefully considered in your selection process. Epoxy paint stands out for its durability, while acrylic and enamel paints offer a wide array of color options along with ease of application.

Safety Measures:

Safeguard yourself against harmful chemicals and fumes by wearing appropriate safety gear and maintaining proper ventilation in your workspace. Prioritizing safety is paramount throughout the refinishing process.

Cost Estimation:

The cost of refinishing a fiberglass tub varies depending on factors such as tub size, condition, materials, and labor. DIY refinishing kits range from $80 to $120, while professional services may cost between $300 and $700 on average.


Refinishing a fiberglass tub is a rewarding project that can transform the look of your bathroom at a fraction of the cost of replacement. By following the steps outlined in this guide, along with proper preparation, choice of materials, and safety measures, you can achieve professional-quality results that will enhance the appearance and longevity of your tub.


Can the color of a fiberglass tub be changed?

Yes, the color of a fiberglass tub can be changed during the refinishing process using specially formulated paints for fiberglass surfaces.

What kind of paint do you use on a fiberglass tub?

It’s essential to use epoxy or acrylic-based paints specifically designed for fiberglass surfaces when refinishing a fiberglass tub.

Will Magic Eraser damage fiberglass tub?

Yes, Magic Eraser can potentially damage the surface of a fiberglass tub if used with excessive force due to its abrasive nature. It’s recommended to test it on a small area first and use gentle pressure.

2 thoughts on “The Ultimate Guide to Refinishing a Fiberglass Tub”

  1. Thank you for mentioning that there are various coatings available for repairing a fiberglass tub. As you mentioned, this included epoxy paint, which is a strong, water-resistant coating that is frequently used to repair fiberglass bathtubs because of its resilience to chemicals and scratches. I’ll be sure to share this with my sister because she’s been wanting to paint the tub in her house so she has options. I will definitely look into experts who could assist her with it. I appreciate you sharing!


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