What’s the difference between Tin cure silicone and Platinum cure silicone?

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Mold Making Materials COMPARISON

Tin cure silicone VS. Platinum cure silicone

Type
Advantages
Disadvantages
Casting materials
Tin-Cured Silicone
High strength, Cost-effective
Shrinks on cure (~0.3%), Cured rubber has limited storage life, Not food-grade
Most materials, especially resins, foams, plaster, wax, concrete etc.
Platinum-Cured Silicone
No shrink on cure, Cured rubber has long storage life, Excellent chemical resistance, Food-grade skin safe, 1:1 simple mix
Cure inhibited by some materials, a slight expensive than tin cure silicone
Most materials, especially resins, foams, plaster, wax, concrete etc. and some low-melt metals and food grade products mould.

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