Introduction:
The core is flexible material (asbestos; non asbestos), which is wrapped by PTFE. It is mainly used as a gasket for tower, groove and all kinds of equipments of strong acid, halogen corrosive liquids or anti-contaminated food flange.(Except melting temperature and alkali metal fluoride). TS7200 is widely used in the chemical, petrochemical, pharmaceutical and food industries.

Soft stuffing materials	TS7210 Type Y This is one of the most frequently used and economic types. It applies to use in every kind of occasion with lower temperature and lower pressure. Insert materials can be used by customers’ request.
Soft stuffing materials	TS7230 Type UR It applies to with large dimension gaskets which are used in the chemicals with poison.
Soft stuffing materials	TS7250 Type UE This type is used with the thick material embedded; it can reduce the inner flanges’ residue.

Main Property	Test Standard	Test Data
Temp.(oC)	/	-100~200
Max. Pressure (bar)	/	50
Compressibility (%)	GB/T 12622	≥20
Recovery (%)	GB/T 12622	≥30
Stress release (%)	GB/T 12621	≤45
Leakage rate cm3/s	GB 12385	≤1 X 10-3