What To Do If You Encounter Issues When Creating Your Epoxy Resin Project

What To Do If You Encounter Issues When Creating Your Epoxy Resin Project?

Feb 27, 2024

Creating epoxy resin projects is known to be an exciting and knowledgeable experience. Whether you're a beginner or an experienced artist, working with it allows you to unlock your creativity and produce stunning art pieces. However, like any artistic hobby, there come times when you encounter issues along the way. 

In this blog, we will discuss some common problems you might face or have faced when creating your epoxy resin project and provide solutions to help you resolve them. We recommend joining a resin art workshop to learn how to overcome these issues under professional guidance.

Types of Issues You Encounter When Creating Your Epoxy Resin Project

It's important to be aware of potential issues during the process. Understanding the common pitfalls and knowing how to handle them saves time, effort, and materials, ensuring a successful project every time.

1. Bubbles in the Resin

One of the most common issues when working with epoxy resin is the formation of bubbles. These can compromise the quality of your project. To avoid this problem, there are a few techniques you can employ:

  • Mixing Thoroughly: Ensure that you combine the resin and hardener thoroughly and slowly to minimise the introduction of air bubbles.
  • Using a Heat Gun or Torch: After pouring the resin, use a heat gun or torch to eliminate any remaining bubbles. Hold the heat source a few inches above the surface and move it circularly until it disappears.
  • Covering the Surface: Placing a cover over your project immediately after pouring the resin can help prevent the formation of bubbles.

2. Uneven Surface or Pits

Sometimes, despite your best efforts, you may have an uneven surface or pits in your epoxy resin project. If this happens, there are a few steps you can take to rectify the situation:

  • Sanding and Polishing: Start by sanding the surface with fine-grit sandpaper to remove the imperfections. Then, polish the surface using a polishing compound to restore its smoothness.
  • Pouring a Topcoat: If the imperfections are too big to sand out, pour a thin layer of epoxy resin as a topcoat. This will help level out the surface and create a smooth finish.

3. Yellowing or Discoloration

Over time, epoxy resin projects may experience yellowing or discolouration. Various factors, including exposure to UV light and improper resin mixing, can cause this. Here's what you can do to prevent or fix this issue:

  • UV Resistant Additives: Adding these additives to your epoxy resin mixture can help reduce the chances of yellowing. These act as a barrier against UV rays and protect the resin from discolouration.
  • Clear Coat Application: A clear coat on top of your cured epoxy resin project can help protect it from UV light and prevent yellowing.
  • Sanding and Polishing: If your resin has already yellowed, you can try sanding and polishing the surface to remove the discoloured layer. However, this may only partially solve the problem, and prevention is always the best approach.

4. Sticky or Tacky Surface

If your epoxy resin project feels sticky or tacky even after the recommended curing time, follow these steps:

  • Allow additional curing time: Sometimes, the resin can take longer to cure fully, especially in humid conditions. Extend the curing time by a few extra days to ensure it hardens completely.
  • Verify epoxy resin-to-hardener ratio: Incorrect ratio measurements can result in a badly cured resin. Ensure you use the correct proportions of resin and hardener according to the instructions.
  • Evaluate environmental factors: Excessive heat or humidity can affect the curing process. Ensure your workspace is at the recommended temperature and humidity level for optimal results.

5. Cracks or Warping

This happens if the mixture is exposed to extreme temperature changes or the curing process is incorrectly done. To address these issues, follow these steps:

  • Prevent Temperature Fluctuations: Avoid exposing your resin projects to extreme temperature changes. Keep them in a controlled environment with a stable temperature.
  • Allow Sufficient Curing Time: Ensure you give your project enough time to cure. Follow the resin instructions for the recommended curing time and avoid rushing the process.
  • Post-Curing: After the initial curing period, consider post-curing your project by placing it in an oven at a low temperature for an extended period. This will help to strengthen the resin and reduce the chances of cracking or warping.

6. Dust or Debris in the Resin

This can make your project look less professional. To avoid this issue, follow these tips:

  • Clean Working Area: Before starting your project, ensure your working area is clean and free from dust and debris. Wipe down surfaces and use a vacuum if necessary.
  • Cover and Protect: While working with epoxy resin, cover your project with a dust-free plastic cover or use a dust-free environment, like a clean box, to prevent dust or debris from settling on the resin.
  • Remove Debris: If you find dust or debris on your project after it has cured, gently sand it down and apply a fresh layer of resin to achieve a smooth finish.

7. Incomplete or Uneven Curing

This can be a frustrating issue to encounter. Here's how you can address this problem:

  • Measure Accurately: Properly measure the resin and hardener to ensure the correct ratio. Correct measurements lead to complete or even curing.
  • Mix Thoroughly: Mix the resin and hardener thoroughly, ensuring no unmixed portions. This will help to ensure even curing throughout your project.
  • Allow Sufficient Curing Time: Follow the manufacturer's recommendations for the curing time. Resist the urge to handle or move your project before it has fully cured, which can lead to incomplete curing.


Having issues when creating your epoxy resin project is not uncommon, but with the right techniques and solutions, you can learn to overcome these challenges. Remember to be patient, experiment, and learn from each experience. By doing so, you will continue to improve your skills and create beautiful epoxy resin masterpieces. 

So don't let the fear of encountering problems stop you from starting your next resin project. To learn more about resin art, its techniques, and how to perform them properly, visit Arts Shala's website. Contact Us for more information. 

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