Using silicone molds to make resin crafts? Awesome. You can use them to make an artsy chess set or terrazzo earrings. Now that you’ve invested in resin silicone molds, you want to make sure they last. Caring for your molds isn’t tricky, but I do see artists making mistakes when it comes to silicone mold care. Here are the pitfalls you need to avoid:
Mistake #1: Not storing your molds in a single, flat layer.
Stacking them in a pile will cause them to bend and buckle. Once a silicone mold warps, it won’t go flat again.
💡 Pro tip: To create more space within a box, place a piece of cardboard on top of a layer of molds to create a new layer. Then, evenly distribute the molds on the next layer.
Mistake #2: Skipping the mold release
Resin mold release makes it easier to demold resin. Plus, it prolongs the life of your mold. It protects against microtears that cause your molds to rip.
⭐️ BONUS: Here are three reasons why I always use a mold release.
Mistake #3: Keeping your silicone molds in the heat and sun.
Excessive heat and UV light dry out the silicone. Your mold will crumble and stick to your resin.
Mistake #4: Not thinking about long-term storage
Even when you’re careful about storing your molds, sometimes they don’t stay in shape. If you’re not using your silicone mold for a while, care for it by placing a casting in it to help it keep its shape.
You can use one of your resin mistakes in the mold to help it stay even and formed.
💡 Pro tip: If it’s an intricate mold, pour warm candle wax into the mold. It will easily demold later.
Mistake #5: Piercing holes in your mold.
Your mold will stretch and lose its shape. Not to mention there’s a hole in your mold. Like resin can run through a hole… #justsayin
💡 Pro tip: If you need to mark your molds, use your favorite marker pen.
Mistake #6: Not washing your molds.
When finished resin casting with your mold, wash it with warm water and mild soap.
Good silicone mold care means not using use solvents to clean your mold and not running it through the dishwasher. In fact, don’t ever put epoxy in your dishwasher. Not only will it ruin your dishwasher, but it might also ruin your marriage. (Name withheld to protect the poor husband you will NEVER make that mistake again.)
Make sure your molds are completely dry before storing them.
⭐️ BONUS: Three steps to getting uncured resin off your silicone molds.
Mistake #7: Applying too much heat.
You don’t want to warp or burn the mold. Use a heat gun to gently apply heat instead of a torch or lighter flame.
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Unpublished Blog Posts of Resin Obsession, LLC © 2022 Resin Obsession, LLC