stable, and it does not burn. Chemical formula is xSiO2?yH2O. Silica gel contains organic silica gel and inorganic silica gel. Inorganic silica gel is a highly active adsorption material. It is usually prepared by reaction of sodium silicate and sulfuric acid, and silicone diabetic alert braceletsa series of post-processing processes such as aging and acid bubble. Household use desiccant, humidity regulator, deodorizer belongs to inorganic silica gel.Organic silica gel is an organosilicon compound. It refers to a compound containing Si-C bond and at least one organic group, which is directly linked to silicon atoms. It is mainly divided into four categories: silicone rubber, silicone resin, silicone oil and silane coupling agent. There are 4 types of silicone products, moulded silicone products, extruded silica gel products, liquid silica gel products and special silicone products. Silicone rubber is one of organic silica gel and it is one of the moulded silicone products Temperature resistance, weatherability, electrical insulation performance, Physiological inertia, Low surface tension and low surface energy are the outstanding characteristics of organic silica gel. The one we use to make bracelet is named polysiloxanes di-Me Me vinyl vinyl group-terminated chemically. We add curing agent to the soft original silicone rubber and mix them evenly, then put it to molding machine with high temperature of about 200℃, a few seconds later the silicone rubber gets solidified. Here comes the silicone bracelet with custom logo by mould. Characteristic of the silicone rubber stay same on the process but it get more strengthened. Plain rubber wristbands are one of the most popular promotional gifts at present. They are also popular birthday gifts, banquet gifts and so on.We also call plain rubber wristbands as blank silicone wristbands. Various colors: any color on Pantong Card,pure color, segmented color, swirl color,dual layers color, camouflage, glowing in the dark, lUV ight changing, temperature changing and etc Different colors represent different meanings: Red: Enthusiasm, unrestrained, joy, celebration. Black: serious, night, steady. Yellow: noble and rich. White: Pure and simple. Blue: Wisdom, sky, refreshing. Green: life, vitality. Customize your own color plain rubber wristbands! silicone-bracelet-watchnike-just-do-it-rubber-wristbands watch, heart or other shapes. It is made by mould. The logo can be debossed, debossed colorfilled, embossed, embossed printed or printed. When we make the design, we can put the fishtail logo on the middlle of the wristband as the figured part. The width of logo will be larger than the bracelesilicone diabetic alert braceletst. So it looks outunderstanding. Also you can make it better by making the colors different. The bracelet can be segment, swirl and glowing also. Our designer will make it best. The fishtail bracelet is good to be friendship bracelet with the slogan of our friends, team and family on it. We produce milions of bracelets per year wholesale price. Order less than 100pcs, get 50pcs free and 5pcs keychains free. Order 100pcs or more, get 100pcs free and 10pcs keychains free. All the free wristbands and keychains are same design of the one you order.