When selecting silicone products, we all encounter this problem: that is, many silicone products have stains on the surface.

What causes stains on the surface of silicone products? 

       First, the problem of silicone raw materials, production workshop, molding workshop, preparation workshop, if the environment is not clean, silicone raw materials are not well preserved, exposed to the air, it is easy to adsorb dust, it will cause silicone products molding stains;
       Second, the production mold or production equipment and the surrounding dirt is more, then the product in the production process will cause a lot of dirt in the mold cavity, and then molding will cause the stain situation;.
       Third, the external release agent itself is dirty, and when spraying the release agent, the dirt is also sprayed out together and adsorbed on the surface of the mold cavity, causing the surface of the key to be dirty after molding.
       Fourthly, the electric heating plate under the vulcanizing machine is dirty, as long as the mold is closed, the dirt will be sucked inside the mold cavity, causing the silicone products to be stained.
Therefore, when selecting silicone products, we should pay extra attention to the surface!