High Hardness Addition-Cure Mold Tooling Silicone 30A

High Hardness Addition-Curing Mold Making Silicone 30A For inquiries about liquid mold silicone, contact Ms. Chen at 13662816580

Liquid mold silicone rubber (referred to as "mold silicone") used for manufacturing fixtures requires strict operating procedures to ensure mold precision, durability, and demolding effectiveness, especially suitable for fixtures (such as inspection fixtures, assembly fixtures) with high demands for dimensional stability and surface finish. Below is a detailed usage method, covering preliminary preparation, operating steps, common issues, and precautions:

Core Preliminary Preparation: Clarify Parameters and Inventory Materials
Fixture mold silicone is mostly two-component (Component A: silicone base; Component B: curing agent). Key parameters must be confirmed first to avoid mold failure due to selection errors.

Essential Material List:
Two-component mold silicone (Agent A/B);
Weighing tool: electronic scale (accuracy 0.1g, ensuring precise ratio);
Mixing tools: clean plastic/glass container (metal containers should not be used as they may affect the curing of addition-curing silicone), mixing stick (silicone/plastic material to avoid shedding debris);
Release agent: Vaseline, specialized silicone rubber release agent (for complex master molds or adhesive-prone substrates);
Vacuum equipment: vacuum machine (recommended vacuum degree ≤ -0.095MPa, used to remove silicone bubbles and ensure the mold is pore-free);
Master mold: fixture prototype (must be pre-polished smooth, free of burrs and oil stains);
Mold frame: plastic/metal frame customized according to fixture dimensions (height should be 1-2cm higher than the master mold to prevent silicone overflow);
Cleaning tools: alcohol, lint-free cloth (used for cleaning the master mold and containers).