Outside Envelope

We are engaged in exporting excellent quality Outside Envelope to our valuable clients. Outside Envelope is the special envelope,it can withstand 130A C temperature over 500 hours.
Standard configuration descriptioni
1.In the process of sulfide,outside envelope is used to isolate the tyres and internal air of vulcanizing tank.It can ensure that the tire vulcanizing tank can't contact the air directly.
2.When the tire is unvulcanized,It can prevent the internal air of vulcanizing tank coming into the gapsbetween the tread compound and tire body.Vulcanizing tank of compressed air keep pressure on the tread rubber indirectly,it can ensure the pressure for vulcanization.
3.At the same time,the pressure inside the package sleeve can also be relatively independent control,guarantee the vulcanized rubber tread compound pattern groove department when also has the sulfide stress. Package sleeve the highest temperature can reach 130 degrees,the service life of more than 500 hours.