Viton® B-202

Category: Fluorelastomer , Fluoroelastomer
Manufacturer: DuPont Performance Elastomers
Trademark: Viton®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: eydeC0_Viton-B-202.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
Wechat: WECHAT
Message
Viton® B-202* is a low viscosity, B-type gum polymer that demonstrates improved processing and rheology when compared with existing fluoroelastomers.

Viton B-202 is designed to be cured with either Viton Curative #30 or Viton Curative #50. When using Viton Curative #30, use Viton Curative #20 in a ratio of about 1.8 Viton Curative #30 to Viton Curative #20. When using Viton Curative #50, use 0.3-0.5 phr of Viton Curative #20 to ensure a fast cure rate. Note that Viton Curative #20 can be difficult to mix into low viscosity stocks, such as those based on Viton B-202, and careful attention needs to be paid to mixing procedures.

Compared with other B-family terpolymers, Viton B-202 provides:
-Low viscosity
-Improved processing
-Increased mold flow
-Excellent mold release

Applications
-Transfer and injection molding of complex shapes
-Extrusions (e.g., fuel hose and tubing)
-Solution coatings of fabrics, tanks or chemical containers

Viton B-202 can be blended with other Viton types to modify viscosity, enhance processibility and/or improve flow.
General Information
Features
  • Low viscosity
  • Good demoulding performance
Uses
  • Washer
  • Metal bonding
  • Seals
Appearance
  • Grey
Forms
  • Sheet
Processing Method
  • Coating
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.86g/cm³ASTM D792
Mooney Viscosity 20MUASTM D1646
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore A)77ASTM D2240
ElastomersNominal ValueUnitTest Method
Tensile Stress (100% Strain)3.70MPaASTM D412
Tensile Strength (Break)8.70MPaASTM D412
Tensile Elongation (Break)310%ASTM D412
Compression Set
    150°C, 70 hr 20%ASTM D395B
    200°C, 70 hr 34%ASTM D395
    200°C, 168 hr 42%ASTM D395B
AgingNominal ValueUnitTest Method
Change in Tensile Strength in Air ASTM D573
    200°C, 168 hr 55%ASTM D573
    100% strain, 200°C, 168 hr 57%ASTM D573
    232°C, 24 hr 52%ASTM D573
    100% strain, 232°C, 24 hr 38%ASTM D573
    250°C, 168 hr 29%ASTM D573
    100% strain, 250°C, 168 hr 24%ASTM D573
Change in Ultimate Elongation in Air ASTM D573
    200°C, 168 hr -26%ASTM D573
    232°C, 24 hr -23%ASTM D573
    250°C, 168 hr -26%ASTM D573
Change in Durometer Hardness in Air ASTM D573
    Support a, 200°C, 168 hr 3.0ASTM D573
    Support a, 232°C, 4 hr 1.0ASTM D573
    Support a, 250°C, 168 hr -26 2.0ASTM D573
Change in Tensile Strength ASTM D471
    150°C, 168 hr, in ASTM 105 oil -23%ASTM D471
    100% strain, 150°C, 168 hr, in ASTM 105 oil 49%ASTM D471
    200°C, 70 hr, in Stauffer 7700 liquid 30%ASTM D471
    100% strain, 200°C, 70 hr, in Stauffer 7700 liquid 24%ASTM D471
Change in Ultimate Elongation ASTM D471
    150°C, 168 hr, in ASTM 105 oil -56%ASTM D471
    200°C, 70 hr, in Stauffer 7700 liquid -19%ASTM D471
Change in Durometer Hardness ASTM D471
    Support A, 150°C, 168 hr, in ASTM 105 oil 5.0ASTM D471
    Support A, 200°C, 70 hr, in Stauffer 7700 liquid -8.0ASTM D471
Change in Volume ASTM D471
    23°C, 70 hr, Class C Standard Fuel 3.0%ASTM D471
    23°C, 70 hr, methanol 17%ASTM D471
    150°C, 70 hr, in ASTM 105 oil -1.0%ASTM D471
    200°C, 70 hr, in Stauffer 7700 liquid 9.0%ASTM D471
Additional Information
Nominal Viscosity, ML 1 + 10, 121°C: 25Polymer Fluorine Content: 68.5%
Resin Grade Manufacturer Category Trademark
Baytec® MP-030 Covestro - PUR PUR-MDI Baytec®
Kepamid® 1325GFS Korea Engineering Plastics Co., Ltd Nylon 6 Kepamid®
KYOCERA TCG1837 KYOCERA Chemical Corporation TS, Unspecified KYOCERA
TOTAL Polypropylene PPC 4740WZ TOTAL Refining & Chemicals PP Impact Copolymer TOTAL Polypropylene
EcoPaXX® Q170E-H DSM Engineering Plastics Nylon 410 EcoPaXX®