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Why do some silica gel smell?

With the continuous improvement of the technology of silica gel products, silica gel products are more and more widely used in our daily life. However, some businesses find that some silicone products will emit a pungent smell when purchasing silica gel products, so why do they have this smell? Is it poisonous? Wait for questions?

With the continuous improvement of the technology of silica gel products, silica gel products are more and more widely used in our daily life. However, some businesses find that some silicone products will emit a pungent smell when purchasing silica gel products, so why do they have this smell? Is it poisonous? Wait for questions?



These problems are mainly because some silica gel manufacturers, in order to save costs, use common vulcanizing agents that are not environmentally friendly and cheap, rather than environmentally friendly and odorless vulcanizing agents that can completely pass the ROHS test. The vulcanizing agent is a kind of catalyst to promote the vulcanization and molding of silica gel raw materials, which will volatilize after the molding of silica gel products, and only a small part of them will remain, which will volatilize in 48 hours. Vulcanizing machine will not harm human products, but the low curing opportunity produces a burning pungent smell, and the volatilization time is about one month. Therefore, when choosing silicone gifts, try to choose tasteless silicone products with better performance. In particular, silicone kitchenware, more stringent requirements.



Basically, there will be no strong taste in the rubber. The taste problem mainly lies in the vulcanizing agent and curing press mentioned above. PS: the selection of vulcanizing agent should use odorless vulcanizing agent, and there is basically no smell after the second stage. Note that the secondary vulcanization temperature is 200 ℃ / 2-4 MS, which can also be 155 ℃ or 150 ℃ / 12 hours. In this way, the smell of silica gel and water molecules will evaporate, no smell.



Baishun silicone plastic tips: consumers should first look at the wear resistance, elasticity, tear strength and odor of silicone products when purchasing silicone products.