Second Vulcanization also named “after cure”, it is necessary for silicone products.
The silicone density is not good when produced it . after cure can strengthen the silicone density ,.pull strength, elasticity , hardness, stability. When after cure in the bake . the material reaction under 200 degrees Celsius.
2 hours later , need get the products from oven, put the product in a ventilation environment.
Also the silicone products have the pungent smell if without “Second Vulcanization”.
This is why it is necessary .
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