How to Choose Right Silicone Mold Material For Resin Crafts Production
Jun 11,2026
Mold selection is critical for resin craft manufacturing. Silicone molds stand out as the top choice thanks to easy demolding, low deformation and outstanding anti-aging performance. How to pick suitable silicone for resin craft molds?
First, learn about high-temperature resistant silicone. It is divided into liquid type and solid type, and liquid high-temperature silicone is the mainstream for resin craft molds. It features heat resistance of 180℃-300℃, and extra flame-retardant additives can be added for higher temperature resistance.
Key factors to select ideal silicone for resin craft molds:
1. Moderate Hardness
Silicone hardness directly affects demolding and molding effect. Over-hard silicone causes difficult demolding; over-soft silicone leads to finished product deformation. Moderate hardness delivers optimal molding performance.
2. High Temperature & Aging Resistance
High-temperature liquid resin is adopted in production. The matched silicone mold must own heat resistance and anti-aging properties to avoid mold burnout, guarantee finished product quality and operational safety.
3. Low Shrinkage Rate & Long Service Life
Silicone with low linear shrinkage ensures precise dimension stability of resin crafts. Long-lifespan silicone reduces frequent mold replacement and boosts overall production efficiency.
4. Excellent Tensile & Tear Strength
Resin mold bears repeated external force during casting and demolding. High tensile strength and superior tear resistance improve mold durability and structural reliability for mass production.
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