You’re excited to demold your project. Like excited on a scale of Christmas morning unwrapping. You gently peel your resin from your silicone mold only to find it’s got a frosty finish or white streaks within the resin. Ugh. Why does cloudy resin happen? And even more important, how can you fix cloudy resin?
Step 1: Decide if the cloudy resin is on the surface or throughout your resin casting.
Surface resin cloudiness
In this situation, you have three options to fix your cloudy resin:
1. Recoat with a layer of doming resin.
Use the resin like a glaze coating. Brush it over the surface of your cloudy resin and allow it to cure.
2. Apply a couple of light layers of polycrylic spray.
This method is the best choice for resin projects that have a lot of grooves, irregular or curved surfaces.
3. Sand the surface and buff it with a resin polishing kit.
My favorite way to do this is using the Novus polishing kit.
Resin cloudiness throughout
In this case, I’m afraid there isn’t a way to fix cloudy cured resin. The best you can do is to prevent it the next time you mix and pour resin.
1. Make sure your inclusions are completely dry before adding to the resin.
Water can contaminate your resin and leave cloudy streaks.
2. Warm your resin kit before using it.
This will dissolve any crystals that may have formed from your resin getting too cold.
3. Make sure to mix your resin and hardener thoroughly.
Incomplete mixing can cause cloudy streaks in the resin. If you are new to mixing resin, this will help: how to mix resin and hardener.
And if you can’t fix your cloudy resin, here’s what you can do with your resin mistakes.
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