Rubber seal ring color: rubber seal can be mixed according to the international Pantone color number to mix, so from the color above simply do not see any difference plus appearance after treatment more without any blemishes, but the main is to stretch to see the rebound will not appear white or transparent phenomenon, if there is that material may belong to the ordinary material!
 
Rubber seal ring feel: rubber seal ring feel is very important, silicone products whether stretching, rebound, deformation and toughness strength are very important, if reached the above several properties are basically high-quality materials, the general role of high-end products and brand products such as: (brand official website silicone mobile phone protective case) and other products on the use of a relatively wide range!
 

Open fire burning rubber seal: this method is very effective, generally high-quality rubber seal ring material after combustion and other adhesive material, will come out of white smoke, the product surface after burning will appear white fog phenomenon, completely burned after the final white powder, completely colorless, tasteless, Different materials will appear yellow to the end of the appearance of black residu