Revitalizing Old Tubs with Epoxy: A Comprehensive Guide

June 20, 2024by Ariel Almeda

As the owner of A New Beginning Refinishing in Louisiana, I have witnessed the transformative power of epoxy in restoring old bathtubs. Over time, tubs can become worn, chipped, or outdated, which significantly impacts the overall aesthetics and functionality of bathrooms. Epoxy provides a durable, cost-effective solution to breathe new life into these essential fixtures. This blog will delve into the process of using epoxy for bathtub repair and revitalization, offering insights into the preparation, application, and benefits of this versatile material.

Why Choose Epoxy for Tub Repair?

Epoxy is renowned for its durability, glossy finish, and versatility. It adheres well to various surfaces, including porcelain, fiberglass, and acrylic, making it an ideal choice for bathtub repair. Epoxy can fill cracks, chips, and other imperfections, creating a smooth and seamless surface. Its resistance to heat, stains, and moisture also makes it a practical option for bathtubs, ensuring longevity and ease of maintenance. Choosing epoxy for tub repair not only extends the life of the bathtub but also enhances its appearance, making it look as good as new.

Preparation is Key

Proper preparation is crucial for achieving the best results when using epoxy on bathtubs. The existing surface must be thoroughly cleaned and sanded to ensure the epoxy adheres correctly. Here are the steps to prepare your bathtub for an epoxy application:

  1. Clean the Surface: Start by using a degreaser or mild detergent to clean the bathtub thoroughly. Remove all debris, grease, and grime. This step ensures that the epoxy will bond well to the surface. Pay special attention to areas with visible stains or buildup, as these can affect the adhesion of the epoxy.
  2. Sand the Bathtub: Use medium-grit sandpaper to sand the entire surface. Sanding creates a rough texture that helps the epoxy bond effectively. Focus on areas with existing damage to ensure they are smooth and level. This step is essential for creating a surface that the epoxy can adhere to properly.
  3. Repair Damages: Fill any cracks, chips, or holes with a suitable filler. Once the filler is dried, sand the filled areas to create a smooth, even surface. This step ensures that the epoxy will create a seamless finish over the entire bathtub. Properly addressing these imperfections beforehand will result in a more polished final product.

Applying the Epoxy

Once the bathtub is prepped, the epoxy application process can begin. This involves mixing the epoxy resin and hardener according to the manufacturer’s instructions and applying it evenly to the bathtub.

  1. Mix the Epoxy: Combine the resin and hardener in a clean container. Mix thoroughly to ensure the two components are fully integrated. Follow the manufacturer’s guidelines for the correct mixing ratio and stirring time. Proper mixing is crucial for the epoxy to cure correctly and achieve its full strength.
  2. Pour the Epoxy: Pour the mixed epoxy onto the bathtub, starting from one end and moving toward the other. Spread the epoxy evenly using a notched trowel or a foam roller. Work quickly, as epoxy can begin to set within minutes. Ensuring an even spread will prevent bubbles and create a smooth finish.
  3. Remove Air Bubbles: Use a heat gun or a propane torch to remove any air bubbles that form on the surface. Hold the heat source a few inches above the epoxy and move it in a sweeping motion. This step is crucial for achieving a smooth, glass-like finish. Removing air bubbles ensures that the surface remains flawless and durable.
  4. Allow to Cure: Let the epoxy cure for the recommended time, typically 24 to 72 hours, depending on the product used and environmental conditions. Ensure the area is dust-free and undisturbed during the curing process. Proper curing is essential for the epoxy to harden and achieve its full durability.

Finishing Touches

After the epoxy has cured, inspect the bathtub for any imperfections. Minor issues, such as dust particles or uneven spots, can be corrected by lightly sanding the surface and applying a final coat of epoxy.

  1. Sand Imperfections: If necessary, use fine-grit sandpaper to sand out any imperfections. Be gentle to avoid damaging the cured epoxy. This step ensures a smooth, professional finish.
  2. Apply a Final Coat: If a second coat is needed, mix and apply the epoxy following the same steps as before. This will ensure a smooth, high-gloss finish. A final coat can enhance the durability and appearance of the bathtub.
  3. Polish the Surface: Once the epoxy is fully cured, polish the surface with a polishing compound to enhance the shine and smoothness. This final step gives the bathtub a professional, finished look. Polishing the surface will make it easier to clean and maintain.

Benefits of Epoxy Tub Repair

Using epoxy to repair and revitalize old bathtubs offers several advantages:

  1. Cost-Effective: Epoxy provides a cost-effective way to refresh existing surfaces without the need for a complete replacement. This can save homeowners significant money while achieving a high-end look. Compared to the cost of replacing a bathtub, using epoxy is a much more affordable option.
  2. Durability: Epoxy is highly durable and resistant to heat, stains, and moisture. This makes it an excellent choice for bathrooms, where these factors are common. A properly applied epoxy coating can last for many years, maintaining its appearance and functionality.
  3. Aesthetic Appeal: Epoxy can create a seamless, glossy finish that looks stunning. It can be customized with various colors and patterns to match any design preference. Whether you prefer a classic white finish or a bold, marbled look, epoxy offers endless possibilities.
  4. Versatility: Epoxy can be applied to various surfaces, including porcelain, fiberglass, and acrylic, making it a versatile option for many types of bathtubs. This versatility allows homeowners to use epoxy in different areas of their homes.


Epoxy is an excellent choice for repairing and revitalizing old bathtubs, offering durability, aesthetic appeal, and cost-effectiveness. By following the proper preparation and application steps, homeowners can achieve a beautiful and long-lasting finish. At A New Beginning Refinishing, we specialize in epoxy applications and provide the necessary expertise to ensure successful bathtub transformations.

Whether dealing with minor chips and cracks or looking to completely refresh an outdated surface, epoxy offers a practical and visually appealing solution. With careful preparation and application, epoxy can give bathtubs a new lease on life, enhancing both the functionality and appearance of bathrooms. If you’re considering a bathtub makeover, epoxy might just be the perfect material for the job.