Vamac® G

Category: AEM , Ethylene Acrylic Elastomer
Manufacturer: DuPont Performance Elastomers
Trademark: Vamac®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: EGNYoQ_Vamac-G.pdf
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DuPont™ Vamac® G is a terpolymer of ethylene, methylacrylate, and a cure site monomer. It is cured using an amine-based vulcanization system. This gum elastomer includes a small amount of processing aid, and has a nominal specific gravity of 1.03. It has a mild acrylic odor. Use adequate ventilation during storage, mixing, and processing to prevent accumulation of residual vapors. Storage stability is excellent.

Vamac® G has excellent high-temperature durability and oil resistance with service lubricants, coupled with good low-temperature flexibility. Compounds of Vamac® G are typically rated at 175°C (347°F) for heat resistance, with oil swell values around 50% in IRM 903 oil. The properties of Vamac® G make it well suited for a wide range of automotive applications, including powertrain seals and gaskets, rocker cover and piston seals, oil coolant hoses, power steering hoses, turbocharger hoses, crankcase ventilating tubes, coverings for fuel and coolant hoses, O-rings, grommets and spark plug boots.

Vamac® G is an excellent vibration damping material that is uniquely insensitive to temperature over a range of -30°C (-22°F) to 160°C (320°F). Compounds of Vamac® G are suitable for use in torsional dampers and isolator pads.

Vamac® G is a halogen-free polymer and does not decompose to give off corrosive gasses when exposed to flame. It is used for flame-retarded, low-smoke, nonhalogen wire and cable jackets and in nonhalogen, low-smoke flooring.

Vamac® G is well suited for injection, transfer and compression molding, and is easily extruded.
General Information
Additive
  • Processing Aid
Features
  • Durable
  • Flame Retardant
  • Halogen Free
  • High Heat Resistance
  • Low Smoke Emission
  • Low Temperature Flexibility
  • Low Toxicity
  • Oil Resistant
  • Tack Free
  • Vibration Damping
Uses
  • Automotive Applications
  • Automotive Under the Hood
  • Flooring
  • Gaskets
  • Grommets
  • Hose
  • Seals
  • Tubing
  • Wire & Cable Applications
Appearance
  • Clear/Transparent
Forms
  • Bale
Processing Method
  • Compression Molding
  • Extrusion
  • Injection Molding
  • Resin Transfer Molding
PhysicalNominal ValueUnitTest Method
Mooney Viscosity ASTM D1646
    ML 1+4, 100°C 17 to 40MU
    MS 1, 121°C > 16MU
HardnessNominal ValueUnitTest Method
Durometer Hardness ASTM D2240
    Shore A 148
    Shore A 258
    Shore A 357
    Shore A 68
    Shore A 477
    Shore A 566
ElastomersNominal ValueUnitTest Method
Tensile Stress
    100% Strain 64.80MPaASTM D412
    100% Strain 74.70MPaASTM D412
    100% Strain 85.20MPaASTM D412
    100% Strain 5.10MPaASTM D412
    100% Strain 96.40MPaASTM D412
Tensile Strength ASTM D412
    Yield 108.80MPa
    Yield 1111.3MPa
    Yield 1213.8MPa
    Yield 16.6MPa
    Yield 1315.3MPa
    Yield 1414.1MPa
Tensile Elongation ASTM D412
    Break 15190%
    Break 16150%
    Break 17220%
    Break 280%
    Break 18230%
    Break 19300%
Compression Set ASTM D395
    150°C, 70 hr 16%
    150°C, 168 hr 21%
    150°C, 336 hr 26%
    150°C, 504 hr 30%
    150°C, 1008 hr 40%
    177°C, 168 hr 24%
AgingNominal ValueUnitTest Method
Change in Volume ASTM D471
    150°C, 70 hr, in ASTM Oil #1 9.0%
    150°C, 70 hr, in IRM 903 Oil 60%
    150°C, 1008 hr, in Dexron® III ATF 28%
    150°C, 1008 hr, in SF105 Oil 32%
ThermalNominal ValueUnitTest Method
Brittleness Temperature ASTM D3418
    -- 20-32.6°C
    -- 21-27.9°C
Additional InformationNominal ValueUnitTest Method
Mooney Scorch - Time to 10-unit rise (121°C)13.0minASTM D1646
Volatiles < 0.4wt%Internal Method
Note Message
1 .Aged 70 Hrs at 150°C (302°F) Immersed in IRM 903
2 .Aged 1008 Hrs at 150°C (302°F) Immersed in SF-105 Oil
3 .Aged 1008 Hrs at 150°C (302°F) Immersed in GM Dexron® III ATF
4 .Aged 1008 Hrs at 150°C (302°F) in Air
5 .Aged 70 Hrs at 150°C (302°F) Immersed in ASTM #1 Oil
6 .Aged 70 Hrs at 150°C (302°F) Immersed in IRM 903
7 .Aged 1008 Hrs at 150°C (302°F) Immersed in SF-105 Oil
8 .Aged 1008 Hrs at 150°C (302°F) Immersed in GM Dexron® III ATF
9 .Aged 1008 Hrs at 150°C (302°F) in Air
10 .Aged 70 Hrs at 150°C (302°F) Immersed in IRM 903
11 .Aged 1008 Hrs at 150°C (302°F) Immersed in SF-105 Oil
12 .Aged 1008 Hrs at 150°C (302°F) Immersed in GM Dexron® III ATF
13 .Aged 1008 Hrs at 150°C (302°F) in Air
14 .Aged 70 Hrs at 150°C (302°F) Immersed in ASTM #1 Oil
15 .Aged 70 Hrs at 150°C (302°F) Immersed in IRM 903
16 .Aged 1008 Hrs at 150°C (302°F) Immersed in SF-105 Oil
17 .Aged 1008 Hrs at 150°C (302°F) Immersed in GM Dexron® III ATF
18 .Aged 1008 Hrs at 150°C (302°F) in Air
19 .Aged 70 Hrs at 150°C (302°F) Immersed in ASTM #1 Oil
20 .Initial
21 .Inflection
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