How to Choose Silicone Hardness for Mold Making？
How to Choose Silicone Hardness for Mold Making
Silicone hardness is the most critical parameter for mold making, directly affecting demolding effect, pattern precision, mold flexibility and service life. Unreasonable hardness selection will lead to difficult demolding, pattern damage and mold deformation. This guide helps industrial manufacturers choose the optimal Shore A hardness for different scenarios.
1. Ultra-Soft Silicone (0–20 Shore A)
Features super soft texture and excellent stretchability, suitable for complex undercut structures, ultra-fine pattern molds and human body simulation models. It is easy to demold without damaging delicate products, widely used in medical bionic simulation and high-precision craft molds.
2. Medium Hardness Silicone (20–40 Shore A)
Balances flexibility and stability, the most versatile hardness range. Ideal for food molds (cake, chocolate, candy), daily craft molds and conventional resin casting molds. It ensures easy demolding and long mold service life, suitable for most commercial production scenarios.
3. High Hardness Silicone (40–60 Shore A)
High hardness and strong rigidity, not easy to deform, suitable for flat large-area molds, high-temperature industrial molds and pad printing pads. It maintains stable shape under repeated pressure and high temperature, suitable for industrial batch production.
Professional Suggestion
If you have no clear hardness standard, you can provide your product structure, production process and usage scenario. SIMOST technical team will recommend the most suitable silicone hardness and provide customized formula adjustment services.