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Silicone rubber curing agent

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Silicone rubber curing agent - a necessary product for the production of silicone rubber products

Silicone rubber curing agent is a kind of agent that can make liquid silicone rubber solidify faster. Generally, it is composed of tetraethyl orthosilicate or propyl orthosilicate plus a small amount of organic tin<2 butyl tin laurate>and then diluted with 2 methyl silicone oil.

Silicone curing agent

matters needing attention:

After the silicone rubber curing agent is added to the mold silicone rubber, it must be stirred evenly. If it is not stirred evenly, part of the mold will not be fixed. If the mold cannot be fixed after 48 hours, the mold will be scrapped and will not be cured. The mold can only be made after it is cleaned.


It is a white slightly yellow paste, a diacyl organic peroxide. Used as vulcanizing agent for extruded silicone rubber, with high strength and good transparency. Refer to crosslinking temperature and dosage (depending on different rubber types and product requirements): temperature > 90 ℃; Dosage: 1-2.5%. Soluble in benzene solvents, insoluble in water, ethanol, etc.

Is silicone curing agent toxic?

Silicone rubber curing agent should be low toxic or slightly toxic, because the curing agent mainly includes tetraethyl orthosilicate and organic tin, of which tetraethyl orthosilicate is low toxic, and organic tin is toxic compound, but the dosage is very small, which has no impact on the body, so it can be used safely

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