ngs to amorphous material. Silica gel is a kind of amorphous silicon dioxide, mainly composed of silica. Its chemical property is 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 a 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. custom-wrist-sweatbandssiliconeband-ca cheap custom keychainshref="https://www.silicon-wristband.com/how-to-make-a-simple-friendship-bracelet" target="_blank"> tional rubber wristbands and so on . Each type of bracelet has its own characteristics . Such as the glow in the dark silicone wristbands can shine in the dark when it absorb enough light , the UV silicone wristband will change its own color when it absorb ultraviolet rays . Due to different production processes , There are also differences in the quality of rubber band bracelets . Icheap custom keychainss there any good way to distinguish the quality of rubber bracelet ? Of course , just like the traditional Chinese medicine treatment in China . We can also use four methods to judge the quality of silicone bracelets: look, smell, ask and touch . 1.Look ( Appearance of rubber band bracelets ) Check if there are any dirty things inside the silicone bracelet , such as some color deviation , printing errors , whether the diameter of the bracelet is regular , whether the edge of the bracelet has surplus colloid . Generally, the edges and surfaces of high quality silicone hand rings are very smooth . 2.Smell ( The odor of rubber band bracelets ) Silicone bracelets are generally odorless. During the test, we can use fire to burn silica gel bracelets, high quality silica gel bracelets the residue after combustion is powder . The inferior silica gel bracelet has a bad smell after burning . 3.Ask ( Raw materials for rubber band bracelets ) We can ask the supplier whether silicone bracelet are made of pure silica gel . 4.Touch ( Touch the surface of silicone wristband ) The surface of high quality rubber band bracelets is very smooth and it"s very elastic . ilicone products are on the market.However, there are also some inferior or counterfeit silicone products.So how do we judge the quality of silicone products when we buy silicone products? First, wear resistance Wear resistance is formed after the production of athletic silicone products. The surface of silicone products can resist loss. Good athletic silicone products generally have little surface friction because of external factors, do not affect the appearance of performance, text, color. However, the surface characters of inferior quality silicone products are easy to fall off. Second. Tear strength and tensile strength Athletic silicone products with high tear strength have outstanding anti destructive ability,Long life,not easily affected by external environment. Poor tearing strength of silicone products is generally manifested in the tearing process prone to cracks, thus rapidly expanding the cracking and causing damage. Third, hardness and tensile stress An important indicator of the rigidity (stiffness) of the rubber material. Hardness and elongation stress are the forces needed to produce certain deformation of silicone products.So when buying silicone products, the most important thing is to look at the wear resistance, elasticity and tear strength first. If it meets the requirements, it is a good quality silicone product. If it is not satisfied, give up, so as not to cause financial loss. Fourth. Elasticity Athletic silicone products have good elasticity because high elasticity mainly comes from the movement of molecular segments of silicone.So when buying silicone products, look at the elasticity of silicone products to judge the quality. Fifth. Fatigue resistance When the silicone product is subjected to alternating stress (or strain), the change in the structure and properties of the material is called fatigue. The fatigue damage is caused by fatigue failure as the fatigue process proceeds. camo-silicone-wristbands24-hour-silicone-wristbands om a normal plain silicone wristband is to make the embossed or debossed mould first. This kind of mould is made from copper with the logo inside. When it extruded the silicone , the logo will be one the band. Silk screen printing is applied for printed silicone bracelets. Modern screen printing technology is making screen by photoengraving method using photosensitive material ,oil paintings, prints, posters, name card, binding covers, packaging, commodity, textile printing and dyeing, glass and metal plane carrier. And also this is the printing method for the printed silicone bracelets. Regular sizes of a silicone wristband are 6”(150mm) for toddler, 7”(180mm) for youth, 8”(202mm) for adult in circumference and 1/4”(6mm), 1/2”(12mm), 3/4”(19mm), 1”(25mm) in width. We make it all together 2mm thickness. Regarding with the circumference, it is the most important factor to choose size in our order. It is the average sizes for toddler, youth and adult. The direct way to choose size is to measure the size of your wrist before selecting.