⚡ Props & Electronics

Precision Mold Making: Platinum Silicone & Crystal Resin Casting

By Cosplay Engineering Review Board

Fabrication & Studio Summary

Duplicating intricate prop parts: two-part platinum silicone block molds, degassing in vacuum chambers, and pressure pot bubble-free epoxy resin casting.

Casting translucent glowing gems, badges, and ornate hilt guards requires mastering silicone mold chemistry and pressure casting techniques.

1. Silicone & Resin Casting Matrix

ProcessEquipmentKey ParameterCommon Failure Mode
Mold MakingPlatinum Cure Silicone (Shore 30A)1:1 Mix Ratio / Vacuum DegassingCure inhibition from sulfur clays
Resin CastingPressure Pot @ 45–50 PSIExotherm heat managementMicro-bubble fogging in thick casts

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