Among the many synthetic rubber, silica gel is one of the best. It has a tasteless non-toxic, not afraid of the characteristics of high temperature and to withstand cold, below zero in the ninety degrees Celsius when Baidu and "poised", "without blinking an eye" is still without losing the original strength and elasticity. silica gel there is good electrical insulation, resistance to oxygen aging resistance, light resistance, aging resistance and mildew resistance, chemical stability. Because of these excellent performance, making the silica gel extensively in modern medicine has played an important role. In recent years, hospitals, research institutes and factories work together to successfully trial a variety of medical supplies silica gel.