Differences in Fluids Resistance and Low TemperatureFamily and Type Of DuPont™ Viton® Fluoroelastomer

A B F GB GF GLT GFLT ETP

Cure System

Bisphenol Peroxide

Aliphatic hydrocarbons, process fluids, chemicals 1 1 1 1 1 1 1 1

Aromatic hydrocarbons (toluene, etc.), process fluids, chemicals

2 1 1 1 1 2 1 1

Automotive and aviation fuels (pure hydrocarbons—no alcohol)

1 1 1 1 1 1 1 1

Automotive fuels containing legal levels (5–15%) of alcohols and ethers (methanol, ethanol, MTBE, TAME)

2 1 1 1 1 2 1 1

Automotive/methanol fuels blends up to 100% methanol (flex fuels)

NR 2 1 2 1 NR 1 1

Engine lubricating oils (SE-SF grades) 2 1 1 1 1 1 1 1

Engine lubricating oils (SG-SH grades) 3 2 2 1 1 1 1 1

Acid (H2SO4, HNO3), hot water, and steam 3 2 2 1 1 1 1 1

Strong base, high pH, caustic, amines NR NR NR NR NR NR NR 1–2

Low molecular weight carbonyls — 100% concentration (MTBE, MEK, MIBK, etc.)

NR NR NR NR NR NR NR 1–2

Temperature of retraction (TR-10) –17 °C –14 °C –7 °C –15 °C –6 °C –30 °C –24 °C –11 °C

DuPont™ Viton®

FLUOROELASTOMERS

SELECTION GUIDE

The information set forth herein is furnished free of charge and is based on technical data that DuPont believes to be reliable and falls within the normal range of properties. It is intended for use by persons having technical skill, at their own discretion and risk. This data should not be used to establish specification limits nor used alone as the basis of design. Handling precaution information is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards. Since conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information. As with any product, evaluation under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on patents.

Caution: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, discuss with your DuPont customer service representative and read Medical Caution Statement H-50103-3.

Copyright © 2010 DuPont. The DuPont Oval logo, DuPont™, The miracles of science™, Diak™, Viton®, and Viton® Extreme™ are registered trademarks or trademarks of E.I. du Pont de Nemours and Company or its affiliates. All rights reserved.

Reference Number VTE-H-73453-00-D0810 Printed in the U.S.A.

Visit us at: viton.dupont.com

Contact DuPont at the following regional locations:

North America 800-222-8377

Greater China +86-400-8851-888

Latin America +0800 17 17 15

ASEAN +65-6586-3688

Europe, Middle East, Africa +41 22 717 51 11

Japan +81-3-5521-8484

Selecting the Correct Type of DuPont™ Viton®

1 = Excellent, minimal volume swell 2 = Very Good, small volume swell 3 = Good, moderate volume swell

NR = Not Recommended, excessive volume swell or change in physical properties

DuPont™ Viton® Product Name

Nominal Viscosity (ML 1 + 10 at 121 °C)

Specific Gravity

Polymer Fluorine Content,

%

Compression Set, %

70 hr at 200 °C

Temperature Retraction (TR-10), °C

Increase, CM-15 (3) Fuel at 23 °C

Process

Product Description

Typical Uses

Suggested Uses

Molding Others

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A and AL types: Standard FKM — excellent compression set and heat resistanceCurative Containing Precompounds (“C” at end of product name)

A-331C 30 1.81 66 20 –17 30% X X X X Good mold flow and hot tear for molded seals. X X X X X General purpose molded seals — good hot tear.

A-361C 30 1.81 66 17 –17 30% X X X X X Good mold flow and bonding to steel inserts. X X X Shaft seals/molded seals — bonded to metal.

VTR-9180 (2) 30 1.81 66 18 –17 30% X X X X Excellent processing for automated injection molding. X X X X A-type for O-ring automated injection molding.

A-401C 40 1.81 66 15 –17 30% X X X Good compression molding type for O-rings and low c/s. X X X X X X O-rings, gaskets, and seals — compression molded. AMS-83248

A-601C 60 1.81 66 11 –17 30% X X X Higher viscosity compression molding type — very low c/s. X X X Higher viscosity — optimal compression set. AMS-83248

VTR-9192 (2) 32 1.76 66 25 –19 32% X X X Improved low temp AL for automated injection molding. X X X X Full automatic injection molding of O-rings and seals.

Gum Polymers — gums compounded with ~2.5 phr of VC50

A-100 10 1.82 66 21 –17 30% X X X X X Ultra-low viscosity A-type gum. X X X X Coatings and viscosity modifier when blended with other gums.

A-200 20 1.82 66 16 –17 30% X X X X X X Low viscosity A-type gum. X X X X X X X O-rings, seals, gaskets, and extruded goods.

A-500 50 1.82 66 14 –17 30% X X X X X Medium viscosity A-type gum. X X X X X X X O-rings, seals, gaskets, and extruded goods.

A-700 70 1.82 66 11 –17 30% X X X X Medium/High viscosity A-type gum. X X X O-rings, seals, gaskets, and extruded goods.

AHV 160 (1) 1.82 66 10 –17 30% X X Ultra-high viscosity A-type gum. X X X O-rings, seals, and gaskets.

AL-300 30 1.77 66 25 –19 32% X X X X X X Low viscosity AL-type gum. X X X X X X O-rings, seals, gaskets, and extruded goods.

AL-600 60 1.77 66 14 –19 32% X X X X X X Medium viscosity AL-type gum. X X X X X X O-rings, seals, gaskets, and extruded goods.

B types: 68% fluorine FKM — improved fluids resistance with good compression setCurative Containing Precompounds (“C” at end of product name)

VTR-9176 (2) 40 1.85 68.5 25 –14 15% X X X X B-type precompound for automated injection molding. X X X X B-type for seals that are automated by injection molding.

B-651C 60 1.85 68.5 30 –14 15% X B-type precompound for compression molding/bonding. X X X X Compression molded oil and shaft seals bonded to metal.

VTR-9217 (2) 20 1.82 69.1 31 –13 14% X Precompound for extruding fuel and filler neck hose. Best processing. X X X X Fuel and filler neck hose.

VTR-9209 (2) 30 1.86 69.1 33 –11 14% X Precompound for extruding fuel and filler neck hose. Lowest fuel perm. X X X X Fuel and filler neck hose.

Gum Polymers — gums compounded with ~2.5 phr of VC50

B-202 25 1.86 68.5 34 –14 15% X X 20 Mooney, low viscosity B-type gum. X X X X X X O-rings, seals, gaskets, and extruded goods.

B-600 60 1.86 68.5 22 –14 15% X X X 60 Mooney, medium viscosity B-type gum. X X X X X X X O-rings, seals, gaskets, and extruded goods.

Peroxide Curable B-type Gum Polymers — made with Advanced Polymer Architecture technology

GBL-200S 25 1.84 67.7 25 –16 23% X X X X X 25 Mooney, low viscosity peroxide curable GBL-type gum. (Formerly VTR-8655.) X X X X X X X Seals and extruded goods with improved steam, water and acid resistance.

GBL-600S 65 1.84 67.7 25 –16 23% X X X X X X X 65 Mooney, peroxide curable GBL-type gum. (Formerly VTR-8650.) X X X X X X X Seals and extruded goods with improved steam, water and acid resistance.

F types: 70% fluorine FKM — best hydrocarbon/fluids resistance with good compression setCurative Containing Pre-compounds (“C” at end of product name)

F-605C 60 1.90 70 28 –6 8% X X X X F-type precompound for compression molding. X X X Molded seals and O-rings for fuel sys. Used for M2D401-A8 and A9 specifications.

VTR-9216 (2) 42 1.90 70 28 –6 8% X X X X F-type precompound for injection and transfer molding. Injection molded seals and O-rings.

Peroxide Curable F-type Gum Polymers — made with Advanced Polymer Architecture technology

GF-200S 25 1.90 70.2 25 –5 7% X X X X X 25 Mooney, low viscosity peroxide curable GF-type gum. (Formerly VTR-8605.) X X X X X X X O-rings and seals needing excellent hydrocarbon, alcohol, water, steam, and acid resistance.

GF-600S 65 1.90 70.2 25 –5 7% X X X X X X 65 Mooney, peroxide curable GF-type gum. (Formerly VTR-8600.) X X X X X X X O-rings and seals needing excellent hydrocarbon, alcohol, water, steam, and acid resistance.

Specialties — FKM and FEPM gum polymers made with Advanced Polymer Architecture technologyLow Temperature — peroxide curable FKM gums

GLT-200S 25 1.78 64 25 –31 33% X X X X X 25 Mooney. Best low temperature flexibility and sealing. (Formerly VTR-8505.) X X X X X X O-rings and seals. Can seal at –40 °C in static seal applications.

GLT-600S 65 1.78 64 25 –31 33% X X X X X X 65 Mooney. Best low temperature flexibility and sealing. (Formerly VTR-8500.) X X X X X X O-rings and seals. Can seal at –40 °C in static application. Used for AMS-84385.

VTR-8530 (2) 25 1.80 66 25 –27 19% X X X X X 25 Mooney. Higher fluorine/low temperature type. X X X X X X O-rings and seals. Can seal at –40 °C in static seal applications.

GBLT-600S 65 1.80 66 25 –27 19% X X X X X X 65 Mooney. Higher fluorine/low temperature type. (Formerly VTR-8525.) X X X X X X O-rings and seals. Can seal at –40 °C in static seal applications.

GFLT-200S 25 1.86 67 25 –24 14% X X X X X 25 Mooney. Highest fluorine/low temperature type. (Formerly VTR-8555.) X X X X X X X O-rings and seals needing maximum fuel/alcohol/permeation resistance.

GFLT-600S 65 1.86 67 25 –24 14% X X X X X X 65 Mooney. Highest fluorine/low temperature type. (Formerly VTR-8550.) X X X X X X X O-rings and seals needing maximum fuel/alcohol/permeation resistance.

Viton® Extreme™ base resistance types of Viton® FEPM gums

VTR-8802 (2) 60 1.7 60 40 3 85% X X X X X TFE/P type FEPM with incorporated bisphenol cure system. X X X X X X O-rings and seals needing oil, additive, acid, and base resistance.

ETP-600S 65 1.82 67 45 –10 10% X X X X X Peroxide curable. Resistant to hydrocarbons, alcohol, ketones, acids, bases, and amines. (Formerly VTR-8710.) X X X X X X O-rings and seals needing broad fluids resistance. Most universally fluid resistant type of Viton®.

Good for mixed solvent systems.

FKM curatives and chemicals

VC-50 – 1.38 – – – – – – – – – – – Combination bisphenol accelerator/curative. – – – – – – – Bisphenol AF + accelerator, used to bisphenol cure gum Viton®.

Diak™ 7 – 1.16 – – – – – – – – – – – Coagent/crosslinker for peroxide-cure types of Viton®. – – – – – – – Used as the crosslinker in peroxide cured types of Viton®.

VPA No.1 – 1.2 – – – – – – – – – – – Wax/Sulfone process aid for Viton®. – – – – – – – Use at 0.5 to 1.5 phr level to improve mold release.

VPA No.2 – 0.99 – – – – – – – – – – – Waxy process aid for Viton®. – – – – – – – Use at 0.5 to 1.5 phr level to improve mill, calender, and mold release.

(1) Mooney measured at 150 °C.(2) Products designated “VTR” indicate the material is available for sale based on limited manufacturing and commercial experience.

DPE reserves the right to modify the manufacturing process without notice while maintaining product quality to specifications.

DuPont™ Viton® Fluoroelastomers Selection Guide

(3) CM-15 is 15% methanol in 85% Fuel C. Fuel C is an aromatic hydrocarbon mixture of 50% isooctane/50% toluene.(4) Compliant with FDA Food Contact Regulation CFR 177.2600 — Rubber Goods Intended for Repeated Use.

This guide is an overview of the most commonly used types of Viton® as of July, 2006.Note: All properties on this table are typical properties and not intended to serve as specifications.