Molds & Casting
- What mold release should I use for resin?
For most silicone molds, you don't need a mold release. For other mold materials like plastic or metal, use a dedicated resin mold release spray or a thin layer of petroleum jelly. - How do I prevent resin from sticking to silicone molds?
Silicone molds are naturally non-stick, but you can prevent sticking by keeping molds clean, using a light release agent if needed, and ensuring proper curing. Avoid over-pouring and let resin cure fully before demolding. - Can I use the same mold for epoxy and UV resin?
Yes, you can often use the same silicone mold for both epoxy and UV resin, but check compatibility. Some molds may not withstand the heat of epoxy curing, and UV resin may not cure through thick or opaque molds. - How do I clean resin molds after use?
Clean resin molds by removing cured resin bits, then washing with warm soapy water or wiping with isopropyl alcohol. Avoid harsh solvents that can damage the mold. - What is the best way to remove bubbles from cast resin?
The best way is to prevent bubbles before pouring: mix slowly, warm the resin, and use a pressure pot or vacuum chamber. For surface bubbles, a heat gun or torch works quickly. - Should I use a pressure pot or vacuum chamber for casting?
Use a pressure pot for casting resin to compress bubbles until they're invisible. Use a vacuum chamber for degassing silicone or resin before pouring, not for curing casts.