silicone sealing compound 1. UL, FDA, ROSH or REACH approved 2. OEM service 3. Prompt delivery: 1 week silicone sealing compound MaterialNR,CR,NBR,SBR ... , SILICONE,VITON,EPDM, HNBR, BUNA, etc.Hardness30degree-90degreeMode ... more steady price policy than our competitor square large white silicone sealing compound