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Viton® A-275C

Fluoroelastomer

Supplied by DuPont Performance Elastomers

The technical datasheet with complete property values for Viton® A-275C is available to members of the Prospector Plastics Database.
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Product Description
Viton A-275C is a nominal 20 ML, curativecontaining precompound formulated specifically for optimized performance in injection molding operations. The polymer rheology and cure rate are designed to provide the best possible mold flow and filling characteristics, while maintaining economically fast overall cycle times. In injection molding applications, compounds based on Viton A-275C will provide improved mold flow, better mold release, and superior flash strength, compared to other grades of Viton, such as A-201C or A-401C.

Viton A-275C features:
-Incorporated bisphenol cure system
-Viscosity, rheology, and cure/scorch optimized for injection molding
-Excellent scorch safety
-Excellent mold release
-Excellent compression set resistance

Applications:
-Injection molding of O-rings, gaskets, and other
sealing devices
-Can be formulated to meet FKM specifications
MIL-R-83248C and AMS 7276E
General  
Material Status 
  • Commercial: Active
Availability 
  • Europe
  • North America
  
Features 
  • Fast Molding Cycle
  • Good Mold Release
  • Low Compression Set
Uses 
  • Gaskets
  • Seals
  
Appearance 
  • White
Forms 
  • Sheet
Processing Method 
  • Injection Molding
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792
Elastomers
Nominal Value
Unit
Test Method
Tensile Stress (100% Strain)
psi
 ASTM D412
Tensile Strength (Break)
psi
 ASTM D412
Tensile Elongation (Break)
%
 ASTM D412
Compression Set
     ASTM D395B
73°F, 70.0 hr
%
  
392°F, 70.0 hr
%
  
392°F, 168 hr
%
  
392°F, 336 hr
%
  
450°F, 70.0 hr
%
  
Hardness
Nominal Value
Unit
Test Method
Durometer Hardness (Shore A)
 
 ASTM D2240
Aging
Nominal Value
Unit
Test Method
Change in Tensile Strength in Air
     ASTM D573
392°F, 70 hr
%
  
100% Strain, 392°F, 70 hr
%
  
450°F, 70 hr
%
  
100% Strain, 450°F, 70 hr
%
  
527°F, 70 hr
%
  
100% Strain, 527°F, 70 hr
%
  
Change in Ultimate Elongation in Air
     ASTM D573
392°F, 70 hr
%
  
450°F, 70 hr
%
  
527°F, 70 hr
%
  
Change in Durometer Hardness in Air
     ASTM D573
Shore A, 392°F, 70 hr
 
  
Shore A, 450°F, 70 hr
 
  
Shore A, 527°F, 70 hr
 
  
Change in Tensile Strength
     ASTM D471
73°F, 70 hr, in Reference Fuel C (Isooctane/Toluene, 50/50)
%
  
100% Strain, 73°F, 70 hr, in Reference Fuel C (Isooctane/Toluene, 50/50)
%
  
302°F, 168 hr, in IRM 903 Oil
%
  
100% Strain, 302°F, 168 hr, in IRM 903 Oil
%
  
347°F, 70 hr, in AMS 3021
%
  
100% Strain, 347°F, 70 hr, in AMS 3021
%
  
Change in Ultimate Elongation
     ASTM D471
73°F, 70 hr, in Reference Fuel C (Isooctane/Toluene, 50/50)
%
  
302°F, 168 hr, in IRM 903 Oil
%
  
347°F, 70 hr, in AMS 3021
%
  
Change in Durometer Hardness
     ASTM D471
Shore A, 73°F, 70 hr, in Reference Fuel C (Isooctane/Toluene, 50/50)
 
  
Shore A, 302°F, 168 hr, in IRM 903 Oil
 
  
Shore A, 347°F, 70 hr, in AMS 3021
 
  
Change in Volume
     ASTM D471
73°F, 70 hr, in Reference Fuel C
%
  
302°F, 168 hr, in IRM 903 Oil
%
  
347°F, 70 hr, in AMS 3021
%
  
Additional Information
ODR at 177°C, Microdie, 3° Arc, 12 min motor:
Minimum Torque, ML: 8.7 in-lb
Scorch Time, ts2: 2.7 min
Maximum Torque, MH: 94.2 in-lb
Optimum Cure Time, tc90: 4.9 min

MDR at 177°C, Microdie, 3° Arc, 12 min motor:
Minimum Torque, ML: 0.79 in-lb
Scorch Time, ts2: 1.39 min
Maximum Torque, MH: 17.75 in-lb
Optimum Cure Time, tc90: 2.56 min
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Viton® A-275C, Viton A275C, Viton® , Viton, VitonA275C, A 275 C, A-275C, A275C, A:275C, A/275C, A+275C, A_275C, A 275C, A275, 275C, Fluoroelastomer, Fluorelastomer, Fluoropolymer, DuPont Elastomers, 275A
Features
Features may also be described by the following terms: Low Compression Set, Fast Cycle, Rapid Cycle, Productivity, Fast Molding Cycle, Good Mold Release, Easy Release, Good Demolding.
Uses
Uses may also be described by the following terms: Gaskets, Gasketing.
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.