But it is easy to aging in the air, the heat variable viscosity, easy expansion in mineral oil or gasoline and dissolved, but not resistant to acid alkali.
但在空气中易老化，遇热变黏，在矿物油或汽油中易膨胀和溶解，耐碱但不耐强酸。
2
The chloroprene rubber sheath is heat and oilresistant and flame retardant.