why your epoxy has dimples and how can you avoid them?

Nick Shushan
By Nick Shusan , Epoxy Expert and the CEO of NYC Epoxy Flooring.

December 6, 2022

There could be a few reasons why your epoxy has dimples. One possibility is that the epoxy was not mixed thoroughly before it was applied, causing air bubbles to form and create dimples in the surface. Another possibility is that the surface was not properly prepared before the epoxy was applied, which can cause the epoxy to not adhere properly and create dimples. Finally, it’s also possible that the epoxy was not applied evenly, which can cause it to form dimples.

How Can I Avoid Getting Dimples In My Epoxy Resin?

To avoid getting dimples in your epoxy resin, you should make sure to mix the resin and hardener thoroughly before applying it. Use a stir stick to mix the two components together in a circular motion, making sure to scrape the sides and bottom of the container to ensure that all of the resin and hardener are thoroughly mixed.

It’s also important to properly prepare the surface before applying the epoxy. This means cleaning the surface to remove any dust, dirt, or debris that could interfere with the adhesion of the epoxy. If the surface is not clean, the epoxy may not adhere properly and can form dimples.

Once the surface is clean and the epoxy is thoroughly mixed, apply it evenly to the surface using a paint brush or roller. Work in small sections and use a tool, such as a plastic spreader, to smooth out any bumps or dimples as you go. Avoid overworking the epoxy, as this can cause air bubbles to form. If you do notice any air bubbles, you can use a heat gun or torch to carefully pop them before the epoxy sets.

By following these steps and taking the time to properly mix, prepare, and apply the epoxy, you should be able to avoid getting dimples in your epoxy resin.

How do you fix dimpled epoxy?

Epoxy can be a very effective material for sealing and protecting surfaces, but it can sometimes develop dimples or bubbles on its surface. If this happens, there are a few different ways you can try to fix the problem. Here are a few possible solutions:

  1. Use a heat gun or hair dryer to gently heat the surface of the epoxy. This can help to release any trapped air bubbles and smooth out the surface of the epoxy.
  2. Use a razor blade or scraper to carefully scrape away any excess epoxy that has formed dimples or bubbles. Be careful not to damage the underlying surface or the epoxy that is still in good condition.
  3. Mix a small amount of epoxy and add it to the dimpled area, using a putty knife or similar tool to smooth it out. This can help to fill in any gaps or voids and create a more even surface.
  4. If the epoxy is still not smooth after trying the above steps, you may need to sand the surface of the epoxy to remove any remaining dimples or bubbles. Use fine-grit sandpaper and work carefully to avoid damaging the underlying surface.

Overall, it can take some patience and trial and error to fix dimpled epoxy, but with the right tools and techniques, it is possible to restore the smooth, even surface of the epoxy.

Why does my epoxy look bumpy?

There are a few different reasons why epoxy might develop a bumpy or uneven surface. Some possible causes include:

  1. Air bubbles: Epoxy can sometimes trap air bubbles in its surface, which can create bumps or dimples. This can happen if the epoxy is not mixed thoroughly, or if it is applied too thickly.
  2. Improper curing: Epoxy needs to be cured properly in order to harden and set correctly. If the curing process is interrupted or not done correctly, the epoxy may not set evenly, which can cause bumps or other imperfections in the surface.
  3. Contamination: Epoxy can be sensitive to contamination from dust, dirt, or other foreign substances. If the surface on which the epoxy is applied is not clean, the epoxy may not adhere properly, resulting in bumps or unevenness.
  4. Improper application: Applying epoxy requires some skill and experience. If the epoxy is not applied evenly or in the right thickness, it can create bumps or other imperfections in the surface.

Overall, there are many potential causes of bumpy epoxy, but with careful attention to the mixing, curing, and application process, it is possible to achieve a smooth, even finish.

How do you fix epoxy craters?

Epoxy craters are small holes or indentations that can appear in surfaces that have been coated with epoxy. There are a few different ways to fix epoxy craters, depending on the size and severity of the problem. Here are some possible solutions:

  1. If the craters are small and shallow, you can try filling them in with more epoxy using a syringe or a small brush. Use a putty knife or similar tool to smooth the epoxy out so that it is even with the surrounding surface.
  2. For larger or deeper craters, you may need to remove the epoxy from the affected area and start over. Use a scraper or a putty knife to carefully remove the epoxy, taking care not to damage the underlying surface. Once the epoxy has been removed, clean the area well and apply a new layer of epoxy, following the manufacturer’s instructions carefully.
  3. If the epoxy has started to cure but is still soft, you can try using a heat gun or a hair dryer to warm the area. This can help the epoxy to flow more evenly and smooth out any craters or indentations.
  4. If the craters are particularly stubborn or you are unable to remove the epoxy, you may need to sand the affected area to smooth it out. Use a fine-grit sandpaper and sand gently, taking care not to damage the underlying surface. Once you have sanded the area, clean it well and apply a new layer of epoxy.

In general, it is important to work carefully and slowly when trying to fix epoxy craters, as rushing or applying too much force can damage the underlying surface or cause the epoxy to cure unevenly. If you are unsure about how to fix the problem, it may be best to consult a professional or seek advice from the manufacturer of the epoxy.