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Optimum curing time of silicone rubber compound

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Silicone rubber compound is a new type of environmental protection material, non-toxic and odorless, with stable chemical properties and high and low temperature resistance. It is currently widely used in craft gifts, auto parts, machinery and other industries. The production and molding of silicone rubber compound need to be put into a hydraulic press for high-temperature vulcanization molding, especially for some high-yield silicone rubber products, which have extremely strict requirements for the curing time of silica gel compound, so what is the best curing time of silicone rubber compound?

Silicone rubber compound can be used only after adding vulcanizing agent and thin rubber mixing. Generally, it is better to use it as soon as possible. After adding vulcanizing agent, the silicone rubber compound will volatilize slowly with the storage time, especially after adding sulfur in summer, the silicone rubber compound can only be stored for about 15 days, but it can be stored for one month in spring and autumn, and it can be effectively stored for 2-3 months in winter. However, sulfurized silicone rubber compound will be stored for a long time because the vulcanizing agent in it will gradually volatilize, resulting in difficult vulcanization. The best method is that the vulcanization effect is best when it is ready for use.

So is it the best to put silicone rubber mixture into use immediately after it is refined? Actually, it is not. The surface of the material is still hot after the silicone rubber compound has just been refined. If it is used immediately, there will be white spots and scorched edges. We should wait until the silicone rubber compound cools to normal temperature before using it. This is the best curing time for silicone rubber compound. Its curing time is the shortest, and the product scrap rate is the lowest. If conditions permit, the refined silicone rubber compound can be stored in the air conditioning room. It is better to use the materials that have been refined that day.

The best curing time for silicone rubber compound is to put it into use after the raw material has been refined and cooled to normal temperature. Its curing effect will gradually deteriorate with the storage time.

For silicone rubber, please check the details:
https://www.siliconerubbers.net/product-general-grade-htv-silicone-rubber.html

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