Page 34 - banneredThermosealCatalog2010

PTFE

soft-chem®

Thermoseal® soft-chem® expanded PTFE sealing material provides excellent corrosion

resistance and impermeability along with superior creep resistance and sealability for

use in all types of applications. The material's high compressibility enables it to deform

under load and conform to irregularities in flange faces for a tight seal with low,

minimum sealing stress. Standardizing with it also helps to reduce maintenance,

simplify inventory, and save money.

• Can be used with more fragile piping systems

• Ideal for boiler applications because it's largely unaffected by steam or condensate for

longer life and trouble-free sealing

• BAM approval for gaseous oxygen

• Indefinite self life

• FDA compliant

See graphs for temperature & pressure limits

Creep Relaxation

ASTM F38B (1/32")

35%

Sealability

ASTM F37 B Fuel A

.002 ml/min

Gas Leakage

DIN 3535/6

.12 ml/hr

Klinger Hot Compression Test

Thickness Decrease ambient, 3625 psi

37%

Thickness Decrease Hot, 572°F (300°C)

28.6%

Compressibility

ASTM F36

60%

Recovery

ASTM F36

12% min

Tensile

ASTM 152

1,500 psi

Vacuum to Full Pressure

3,000 psi

Chemical Resistance

0-14 ph

Density

.85 g/cm 3

Gasket constants as tested by Ecole Polytechnic

1/16"

G b

1,260 psi

a

.20 psi

G s

3.5 psi

Pressure & Temperature Graphs

(Click here to learn more about graphs)