You can put some shower gel gently wash, and then wash it with water, and finally dry it, do not touch the inside, or white wash. Let dry, wrap in a layer of film paper and store away for next time
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1. The reason why silicone gel is not sticky
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(1) Silica gel due to its own characteristics, it is very easy to stick to dust, resulting in non-stick situation.
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(2) Or the use of time is too long, resulting in silicone weathering, non-stick situation.
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(3) or the quality of silica gel is not good, and it does not have anti-skid performance and viscosity.