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How to make rubber heads with silicone gel

Views: 0     Author: Site Editor     Publish Time: 2023-04-27      Origin: Site

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胶头蓝2

Silicone is a two-component compound, the sulfide reaction is performed at room temperature, where the base material is composed of double hydroxyl polysilicon oxygen, and the curing agent is composed of polysilic acid lipid. Two groups of compounds were crosslinked in the presence of the catalyst to form flexible elastomers. The vulcanated printing gel has the following characteristics:

  1. Room temperature vulcanization, no heat, good dimensional stability, bright gloss.

  2. It has good variable characteristics and dismode, and good liquidity.

  3. Good elasticity, high tear resistance, the preparation of different hardness varieties to adapt to a variety of applications without deformation, convenient mold release.

  4. Easy to operate, easy to use the process, in a certain range can adjust the curing cycle.


Process

  1. First use the tools such as: rubber head mold, mixing bucket, mixing stick with detergent (detergent, copper water, etc.) clean (different properties of the mold to use different detergent, can not use highly corrosive solvent, such as the water, net water, etc.). Then fully wipe clean, can not exist any foreign body and stain. Then apply a layer of film agent on the mold: such as vaseline, detergent, etc. (some properties of the mold need not apply film agent).

  2. According to the volume of the mold, silica gel / offset paste and silicon oil are calculated by the shift seal (adding silicone oil to adjust the hardness of the adhesive head. Too much dosage, the wear resistance of the rubber head is poor.), Mix well and stir well. Then sit for 10 minutes or vacuum.

  3. After mixing the total weight of the slurry and silicon oil, add a certain weight of curing agent, and stir again fast and evenly for 3-5 minutes. If possible, vacuum foaming is called forced bubble method; no vacuum foaming is called natural bubble method.

  4. Put the vacuum bath or leave the vacuum bath. Slowly pour into the mold from the edge of the mold. Can not pour into the center of the mold, which will increase the amount of bubbles, reduce the service life of the glue head.

  5. Place the vacuum mixture into the mold and cover the mixture for about 30 minutes.

  6. The rubber head is placed for 3 days, and better better better if better.

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