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VITON EXTRUSION

Viton® consists of essentially several standard and specialty types of polymers based on their composition and flourine content.

The types differ primarily in the end-use performance of parts made from Viton®. Each type differs in its ability to: resist permeation and volume increase, resist attack and property degradation caused by the chemicals and fluids.

Standard and Specialty
Types of Viton®
Principal Applications
A, AL, GAL-S, GLT-S General purpose sealing: Automotive, Aerospace fuels & lubricants
B, BL, GBL-S, GBLT-S Chemical processing, power, utilities. Seals & Gaskets
F, GF-S, GFLT-S Oxygenated automotive fuels, concentrated aqueous inorganic acids, water and steam
TBR-S Automotive & Off-Road (High pH requirements)
ETP-S Oil Exploration/Production
Special sealing requirements for harsh environments

Click below to view

The latest types of Viton® made with Advanced Polymer Architecture (APA) are indicated by an 'S'.

The choice of the most appropriate type of Viton® to use for any given end-use application will be determined by the end-use service, and in particular, whether the finished part must provide:

  • Resistance to amines or caustics
  • Resistance to hydrocarbon fluids
  • Flexibility at low temperature (ability to maintain a seal at low temperature)

The end-use performance capability of the various types of Viton® differ primarily in terms of these three factors.

End-use service differences between Types of Viton®

Standard and Speciality Types
Low Temp. Flexibility TR-10, °C
Compression Set, O-rings 70 h/200°C, %
Fluid Resistance
Base Resistance
% Volume Increase after 168 h
% loss of elongation at break
Toluene at 40°C
Fuel C/MeOH (85/15) at 23°C
Methanol at 23°C
Concentrated H2SO4 at 70°C
33% solution of KOH 336h/40°C
ASTM Ref. Oil 105 500h/150°C
AL -19 20-25 20-25 35-40 85-95 12-15 -50 -80
A -17 12-17 20-25 35-40 85-95 10-12 -45 -80
BL, GBL-S -15 25-40 12-15 20-25 25-35 3-5 -25 -65
B -13 25-30 12-15 18-23 25-35 8-10 -25 -70
ETP-S -11 45-50 6-8 8-10 1-2 4-6 0 -10
GFLT-S -24 35-40 8-12 10-15 3-5 3-5 -30 -40
GBLT-S -26 35-40 12-15 27-32 25-35 3-5 -40 -50
F -8 30-45 8-12 5-10 3-5 7-9 -50 -55
GF-S -8 30-45 8-12 5-10 3-5 7-9 -45 -50
TBR-S +3 45-50 60-65 80-90 - 3-5 -10 -20


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| About West Coast Gasket | Capabilities | Technical Information | Literature Download | Client Upload | Glossary | Contact |
| Gaskets | Extrusions | Molding | Lathe Cutting | Precision Water Jet Cutting | Request for Quote | Resource Links |

We're more than a gasket company. We're specializing in the manufacture of all types of industrial gaskets,
molded and extruded products, including lathe cut washers, metal stampings and custom waterjet cut parts.

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