There are many kinds of liquid silicone on the market, and the quality is uneven. For beginners who have never used silicone, it is very important to choose the silicone that is suitable for their own products. The following start from several aspects to teach you how to choose liquid silicone.

    First of all, from the environmental requirements to choose.Liquid silicone is divided into condensation type industrial grade liquid silicone and molding food grade liquid silicone, industrial grade silicone and food grade silicone Z big difference is environmental protection performance, industrial grade silicone toxic not environmental protection smell;Food-grade silicone is non-toxic and odorless, so it depends on the customer's own environmental requirements to choose.

    Secondly, from the size of the product to start, choose the appropriate hardness of silica gel.The hardness of silica gel varies from 0 degrees to 60 degrees, with a unit spaced every 5 degrees.Size in 20 cm below the product, the hardness of 10-20 degrees;The size of the product is about 20 to 50 cm, and the hardness is about 30 degrees.The size is above 1 meter, and the hardness is about 40 degrees.In short, according to the size of the selection of high hardness, small size of the selection of low hardness rule to choose.

    After Z is to lock what type of silicone according to the customer's use, this is the most important and direct method of Z.Resin crafts, gypsum crafts and cement products mold production, usually choose 20-30 degrees of industrial grade mold silica gel to make.Chocolate molds, cake molds, cookie molds and other food silicone molds choose 5-20 degrees of food grade silicone to complete the production.Adult products, silicone artificial limbs, silicone masks and other human-imitation silicone props are made with 0-10 degrees of environmentally friendly human silicone.The silicone mould with high temperature resistance and small shrinkage rate is added to the mold of 40 degrees silica gel.