7 Steps to a Bubble-Free and Flawless Cure
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Few things exist that are more satisfying than creating a bubble-free resin piece that is flawlessly cured. On the contrary, few things are more frustrating than working tirelessly on a piece, and the result being less than satisfying. No artist enjoys putting time, effort, and passion into a piece, and it coming out sticky, covered in a layer of jelly-like goo, or filled with bubbles.
So, whether you have worked with resin before, and want to perfect your craft, or have recently learned of this mystifying medium and are attempting to build the courage to create your own piece: here is our guide to ensure that your projects reflect the vision that you start with.
- The temperature of the workspace, and resin itself, is key. The workspace should be between 72°-78°F, the closer to 78°, the better.
- If the resin is cool, use a warm bucket of water and place the resin and hardener bottles into the warm water. This will prevent microbubbles. The working time* of the resin mixture will go from 45 minutes, down to 30 minutes. This is because the resin mixture is thermosetting, and with increased temperature, the curing process will begin sooner than usual.
(*Working time is the time you have to mix and pour the resin mixture once the hardener and resin meet in the same cup.)
- When pouring either the resin or hardener, carefully pour down the side of the measuring cup. Pouring from high above the measuring cup can result in air bubbles.
- Double check that the resin and hardener are exactly a 1:1 ratio of resin to hardener.
- When mixing, mix smoothly, thoroughly, and consistently to avoid adding air bubbles. (To avoid adding air to the mixture, press the stirring utensil to the bottom of the cup while mixing.)
- After the resin and hardener is mixed and poured, wait about two minutes. Then, to remove any air bubbles, use an artists torch, kitchen torch, lighter, toothpick, or straw to remove bubbles. (Keep checking over the next 1-2 hours to make sure that additional bubbles do not appear.)
- Last tip: If the resin and hardener are ever milky or cloudy, this is a good indicator that the temperature of your resin is too low.
Working with resin can seem intimidating at first. However, once you understand the elements of a successful pour, it is easy to retrace your steps and see what went wrong whenever issues arise. We hope that these steps give you the confidence to jump into working with resin, if you haven't already. If you already have experience working with resin, we hope that these steps serve as a guide so that every pour you do leaves you satisfied with your work and inspired to create more!
Dave Menderski
First time user. My pour was 1 and 3/4" thick. The top has hardened. This is 4 days after pour, i took base from under pour. It is gouey. Will it set now exposed to air? Or am i to have to scrap it? Got a lot of time into this piece. Would be painful!!!
Kim Leslie
Hello!
Looking for some help. I make sphere or terrarium jewelry using real (dried) flowers. I really need a flawless or should I say bubble-less finish.
I purchased your epoxy resin and I get micro bubbles. I have done everything, i’ve read everything… am I missing something? Should this resin be used for jewelry?
Please help!
Thanks so much.
Tahlia Bailey
Thankyou for this! Great notes, explained in-depth. I will try all these tips next time and hope for microbubble-free resin!
Alex
Hi Michael,
Thank you for the question. We do have artists that choose to use a vacuum pot to ensure that there are no bubbles. You absolutely can choose to use it. We just recommend experimenting with how to use it if you have not used one before, before using it on a large amount of resin.
Alex
Hi Mathew,
Thanks for the comment!
We would recommend using a dye that does not introduce too much moisture into the resin and hardener mixture. A lot of artists use alcohol dye. We also have a few different types of pigments that pair beautifully with our resin.
As far as bubbles, we recommend keeping the temperature of both the resin and the workspace between 72 and 78 degrees Fahrenheit. That should help to eliminate some of the bubbles. Please also check to make sure that you are stirring slowly and methodically.
The maximum pour amount is 6 oz or 1/8" for each layer. You can add additional layers as early as 3-5 hours after the previous layer.