Kev txwv ntawm kev siv iav silicone sealant

Kev txwv ntawm cov kua qaub iav silicone sealant: Acid silicone sealant yuav corrode los yog tsis tuaj yeem khi tooj liab, tooj dag (thiab lwm yam tooj liab-muaj alloys), magnesium, zinc, electroplated hlau (thiab lwm yam zinc-muaj alloys), thiab nws raug nquahu kom ua masonry. rau hauv cov khoom Thiab tsis txhob siv cov kua qaub iav silicone sealant ntawm cov hlau carbide substrate. Siv cov kua qaub iav silicone sealant

ntawm cov ntaub ntawv ua los ntawm methyl methacrylate (PLEXIGLAS), polycarbonate, polypropylene, polyethylene thiab TEFLON (Teflon, polytetrafluoroethylene) Nws yuav tsis muaj peev xwm kom tau zoo adhesion thiab zoo compatibility. Acid iav silicone sealant tsis haum rau kev sib txuas uas txav ntau tshaj 25% ntawm qhov sib koom ua ke. Ordinary acid iav silicone sealant yuav tsum tsis txhob siv rau ntawm cov iav txheej txheem (tshwj tsis yog cov kua qaub structural silicone sealant ). Tsis tas li ntawd, nws yuav tsum tsis txhob siv qhov chaw uas muaj kev puas tsuaj thiab muaj qhov tsis zoo. Siv cov kua qaub iav silicone sealant. Qhov kub ntawm lub hauv paus khoom ntawm silicone acid iav silicone sealant tshaj 40 ℃ thiab nws tsis haum rau kev tsim kho. Kev txwv ntawm nruab nrab silicone sealant: nruab nrab silicone sealant tsis haum rau cov qauv iav sib dhos; Nws tsis haum rau kev tsim kho yog tias qhov kub ntawm substrate tshaj 50 ° C. Silicone structural adhesive txwv: Tsuas yog cov ntaub thaiv npog tag nrho, silicone structural sealant tsis tuaj yeem txhaj rau ntawm qhov chaw tsim kho; Qhov kub thiab txias ntawm silicone structural adhesive tsis haum rau kev tsim kho yog tias lub substrate nto kub tshaj 40 ° C. Kev cia khoom thiab txee lub neej Lub silicone sealant yuav tsum khaws cia hauv qab 27 ° C hauv qhov chaw txias, qhuav. Cov kua qaub zoo zoo silicone sealant tuaj yeem lav ntau tshaj 12 lub hlis, thiab cov kua qaub iav silicone sealant tuaj yeem khaws cia rau ntau tshaj 6 lub hlis; nruab nrab silicone sealant thiab structural kua nplaum tuaj yeem lav lub neej txee ntawm ntau tshaj 9 lub hlis. Yog tias lub raj mis tau qhib lawm, thov siv lub sijhawm luv luv; Yog tias tsis siv silicone sealant, lub raj mis yuav tsum tau muab kaw. Thaum siv nws dua, lub raj mis lub qhov ncauj yuav tsum tau unscrewed kom tshem tawm tag nrho cov blockages los yog hloov lub raj mis lub qhov ncauj.