Silicone rubber has a small intermolecular force and a spiral structure. The methyl group is arranged outward and can be freely rotated, so that it has better heat resistance, electrical insulation, chemical stability, etc. than other common ones, but sometimes We will also find occasional bubbles, which affects normal use.

Silicone rubber bubble reasons
1. The water tank gasket manufacturer introduces that the curing time is too short: the length of the curing time determines whether the silicone rubber product can be completely vulcanized. The vulcanization time is too short, which not only causes the silicone rubber product to be soft after molding, but also more likely to cause surface bubbles;

2, the vulcanization temperature is too low: the vulcanization temperature is usually set at 160 to 200 degrees Celsius when the silicone rubber product is molded, the operation time outside the mold is too long or other reasons, the mold does not open into the vulcanizer for a long time, the temperature of the mold and The vulcanization temperature of the silicone rubber product is low, resulting in bubbles generated after the silicone rubber product is formed;

3. The vulcanization temperature is too high: when the molding temperature is too high, the surface of the silicone rubber material has begun to be formed during the process of clamping the mold, and the internal air has been trapped inside and is difficult to discharge, so that the molding bubble is caused;

4, silicone rubber bubble reasons - the structure of the mold is not reasonable: the design of silicone rubber product molding mold is not reasonable, it will also cause the formation of bubbles in the formation of silicone rubber products, such as the arrangement of products in the mold, partition mode, mold splitting mode, mold The size of the design, etc. will cause bad bubbles;

5, the water tank gasket manufacturers introduce insufficient exhaust: silicone rubber products placed in the molding mold, will bring in the air, and the air is impossible to integrate with the silicone rubber raw materials, if you do not discharge these air, it will Causes bubbles on the surface of the silicone rubber product after molding.