roba na halittaya dace da ruwa, ruwan teku, iska, iskar gas, alkali, bayani mai ruwa mai gishiri da sauran kafofin watsa labaru, amma ba mai jurewa ga man ma'adinai da masu kaushi ba, yawan zafin jiki na amfani da dogon lokaci ba ya wuce 90 ℃, ƙananan zafin jiki yana da kyau sosai. , za a iya amfani da sama -60 ℃.

  Nitrile robaya dace da samfuran man fetur, irin su man fetur, mai mai, man fetur, da dai sauransu, yawan zafin jiki na amfani da dogon lokaci shine 120 ℃, kamar a cikin mai zafi zai iya tsayayya da 150 ℃, ƙananan zafin jiki shine -10 ~ -20 ℃.

  Neoprene robaYa dace da ruwan teku, raunin acid, alkali mai rauni, maganin gishiri, kyakkyawan juriya ga iskar oxygen da tsufa na ozone, juriyar mai yana ƙasa da roba na nitrile kuma mafi kyau fiye da sauran roba na gabaɗaya, zazzabi mai amfani na dogon lokaci a ƙasa 90 ℃, matsakaicin zafin jiki na amfani ba wuce 130 ℃, low zafin jiki ne -30 ~ -50 ℃.

Akwai da yawa iri naroba roba, suna da kyau acid juriya, hadawan abu da iskar shaka juriya da man juriya, ƙarfi juriya.Ana iya amfani da shi a kusan dukkanin kafofin watsa labarai na acid da wasu mai da kaushi, zafin amfani na dogon lokaci ƙasa da 200 ℃.

Rubber sheet a matsayin flange gasket, mafi yawa amfani ga bututu ko sau da yawa disassembled manholes, hannun ramukan, da matsa lamba ba ya wuce 1.568MPa.Domin a cikin kowane irin gaskets, roba gaskets ne mafi taushi, mai kyau bonding yi, kuma zai iya taka wani sealing sakamako a karkashin wani karamin pre-loading karfi.Saboda haka, idan an fuskanci matsin lamba na ciki, yana da sauƙi a matse shi saboda kauri ko ƙarancin taurin gasket.

Rubutun roba da aka yi amfani da su a cikin benzene, ketone, ether da sauran abubuwan kaushi na halitta, mai sauƙin bayyanar kumburi, riba mai nauyi, mai laushi, abin mamaki, yana haifar da gazawar hatimi.Gabaɗaya, idan matakin kumburi ya wuce 30%, ba za a iya amfani da shi ba.

A cikin yanayin ƙananan matsa lamba (musamman a ƙasa 0.6MPa) da kuma motsa jiki, yin amfani da takalmin roba ya fi dacewa.Kayan roba yana da ƙima mai kyau da ƙarancin lalacewa.Misali, roba mai fluorine ya fi dacewa don rufe gaskets na kwantena, kuma matakin injin ya kai 1.3 × 10-7Pa.Lokacin da aka yi amfani da kushin roba a cikin kewayon digiri na 10-1 ~ 10-7Pa, yana buƙatar toya kuma a yi famfo.