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Please see below for a quick Q&A of our common problems and issues you can encounter with epoxy resins.

Issues with my Resin or Hardener?

Epoxy resin crystallization is a common issue caused by exposure to a low temperature, generally during the shipping process. It is fixed by simply putting your epoxy resin bottle in warm water around 30°C / 86 °F for a few hours. Do not put in boiling water or water much higher than the suggested temperature.

Yellowed epoxy hardener is caused by oxidation. Every substance exposed to oxygen will slowly begin to interact at the molecular level over time. Epoxy hardener has a shelf life of 12 months if un-opened and six months if opened. The product will still harden; there will only be a tint of yellow in the product if not mixed with colorant.

There are two main causes for your epoxy resin not curing. As this is a thermogenetic reaction, you need to ensure that you set the correct curing temperature. The curing temperature is not only the temperature your room needs to bed at for the entire curing time but also the temperature your epoxy resin and hardener need to be at before mixing. DIY Countertop & Art Epoxy Resin curing temperature: 22°C / 71°F. DIY River Table Epoxy Resin curing temperature: 25°C / 77°F. The other possible cause is the mixing ratio; please ensure you keep the recommended ratio to ensure the success of your projects.

Ensuring that your epoxy resin and hardener are at the curing temperature is a crucial step to ensure the success of your projects. Thousands of tiny bubbles will form and give a cloudy appearance if the resin and hardener are mixed much below the curing temperature. As soon as the mixture warms up, the bubble will dissipate to a crystal clear formula. You can stir the mix beside a warm heater or in warm water. Do not warm more than 30°C / 86 °F.

If the wood is not sealed properly or the encapsulated items or wood in contact with the epoxy is colder than the room temperature, bubbles might form and have a hard time reaching the surface for a full degassing. Using a small butane torch over the bubbles, not more than one second over the same surface area will enable the bubble to the surface, making your project bubble-free!

Fish eyes or rough spots that look like pinholes in your cured epoxy resin are caused by various reasons. The most common cause of these unwanted features is the epoxy resin being spread too thin or the working surface was not clean thoroughly; therefore, there was contaminant such as dust in debris in your epoxy resin pour. Sanding and apply another topcoat is the only solution for this issue. Please see our clear coating tutorial for step-by-step guidance on how to apply a clear coat.