The raw materials of fiber sealing board mainly include rubber, zinc oxide, white carbon black, dibutyl ester, stearic acid, paraffin, sulfur, defoamer, glass fiber, graphite powder, anti-aging agent and accelerator, etc. During the production process, these raw materials are mixed into rubber according to the formula for pulping, and then waste fiber is added to form rubber, and finally the sheet material is made by rolling and vulcanized, in končno oblikovan v končni izdelek.
Poleg tega obstaja formula za tesnilo brez azbesta, katere surovine vključujejo 3800-4200 deli gume, 480-520 deli cinkovega oksida, 1800-2200 deli belega ogljika črne, 180-220 deli dibutil esterja, {5} delov iz delov iz delih, {5} ({5} delih, {5} delov iz delov iz delov z dibutikom, {5} ({5} delov iz delov iz delov, {5} OF OF DELO Paraffin, 70-90 deli Sulfurja, 980-1200 deli agenta za defoaming, 1480-1520 deli steklenih vlaken, 1140-1160 deli grafitnega prahu, 100-120 deli proti- in starodavnim delom in 320-360 deli pospeševalnika.
