AS-257 is light yellow transparent liquid, which belongs to silicone modified material. This product has the characteristics of good adhesion, moderate strength, good resistance to cold and heat alternation, moisture resistance, ozone resistance, radiation resistance, corona resistance and weathering resistance. This product has low viscosity and is easy to spray, dip and brush. This product can be cured at room temperature and by heat curing.

The cured product has good adhesion to metal PCB and other substrates. It can be used for moisture-proof, insulation, anti-sticking, isolation and other purposes in rubber, electrical appliances, electronics and other industries. This product contains ultraviolet fluorescent agent. This product has certain flame retardancy.