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How to do with bubbles during the molding silicon...

It depends on practical situation. Firstly we can deal the mixture with a vacuum machine if we have one; If no, we can reduce the mixing ratio of the hardener from 4% to 1%-2%. Then in the prior period, the reaction of the mixture will be slower, and the air in the mixture will be exhausted by itself.

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How to do with bubbles during the molding silicon...

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