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What should you do for deformation of the silicone mold ?
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1 You should choose right silicone rubber with suitable hardness according to the size of the products, In principle, the hardness of the silicone should be consistent to the size of the products.For the small size products with detailed patterns, the soft silicone can be applicable which the shore A should be 15-20 for easy demoulding and not damage of the patterns. Other wise harder silicone should be needed for large size products, such as products with size 50cm will need harder silicone with 40-50 shore A. then no-deformation. If Large products but features detailed patterns then 30 shore A silicone will be workable.(The process should be a layer silicone add a layer fiber glass or cloth..).
2 You should make a outer mold for your silicone mold.The outer of mold can be plaster, glass fiber reinforced plastic(unsaturated resin and fiber glass) to protect the products from deformation.
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