... design,water resistance.4. far infrared ray emittance5. standarsize or customer designed size.6. silk screen print, deboss,emboss ... 1) non-toxic, odorless, chemically stable, insoluble in any solvents and solutions, in addition to hydrofluoric acid (HF) and strong ... under high temperature conditions.(3) silica gel has a rigid frame structure, high mechanical strength, good wear resistance.(4) silicone ...