SV 121 waa hal qaybood oo shaabadaysan oo ku salaysan silane-resin polyether-ka la beddelay oo ah qaybta ugu muhiimsan, waana ur aan ur lahayn, dareere-la'aan ah, isocyanate-free, iyo walax PVC-la'aan ah.Waxay leedahay viscosity wanaagsan walxo badan, Oo looma baahna curiye, kaas oo sidoo kale ku habboon dusha rinji.Alaabtan waxaa la caddeeyey inay leedahay iska caabin ultraviolet aad u fiican, sidaa darteed waxaa loo isticmaali karaa gudaha gudaha maahan sidoo kale bannaanka.