PTFE SOFT FOAM GASKET (NO ASBESTOS USED)
In Developing PTFE / TEFOMTM our objective was to provide the chemical Industry in particular, with a universally applicable Gasket material offering substantially better characteristics than coventional gasket material.

In order to cover the range of possible applications PTFE / TEFOMTMsheets and rings dark grey in colour was developed.

Product performance and technical data have been determined and checked in numerous test series.

Our tests were carried out under diffcult conditions of pressure and temperature variation over peorods of several weeks. The extremely low leakage figures should be assessed against this background.

PTFE / TEFOMTM is a modified PTFE which is supplied in flat from which seals can be punched or cut in ring form or


In addition to the standard applications - PTFE / TEFOMTM is particulary suitable where sensitive flange materials, such as glass or ceramic, and could be damaged by other excessively hard seal materials.

PTFE / TEFOMTM is extermely resistant to various media and is insensitive to frequent load alternation.

It is adaptable over the whole temperature range between - 1000C and +2600C.

It can deal reliably with pressure upto 40 bar.

PTFE / TEFOMTM has been use with gaseous oxygen at pressure upto 40 bar and at temperatures upto 2250C.

STRAIGHT/FLAT TYPE
Physical Properties
Rupture Strength
Rupture Extension
Hardness
Gas Permeability
Unit
N/mm2
%
Shore -A
Cm3/min
Value
1.1
4.5
83-88
<0.1

Properties:
  • Flexible and soft
  • Very adaptable for uneven surfaces
  • Good sealing effect
  • Good recovery capability
  • Gas permeability
  • No reactions with the media tobe sealed
  • Anti-adhesive