Vibrathane® B839

Category: PUR-Ether/TDI , Polyurethane (Polyether, TDI)
Manufacturer: Chemtura
Trademark: Vibrathane®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: m5m36F_Vibrathane-B839.pdf
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VIBRATHANE B839 is a polyether-based, TDI terminated liquid urethane prepolymer that is readily processable by conventional hand and machine mixing techniques. When cured with 4,4'-Methylene-Bis[2-Chloroaniline], this member of the VIBRATHANE family produces high quality vulcanizates in the 97 Shore A hardness range.

These tough, high resilience elastomers are characterized by:
  • Excellent dynamic properties
  • Good abrasion resistance.
  • Low compression set
  • Good hydrolytic stability.
  • Suitable for use with non-MBCA diamines curatives

Typical applications for these high performance elastomers are wheels, linings, and wear resistant coatings.
General Information
Features
  • Good Abrasion Resistance
  • Good Toughness
  • Hydrolytically Stable
  • Low Compression Set
  • Resilient
Uses
  • Coating Applications
  • Liners
  • Wheels
Forms
  • Liquid
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.13g/cm³ASTM D792
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore A)97ASTM D2240
ElastomersNominal ValueUnitTest Method
Tensile Stress ASTM D412
    100% Strain 13.1MPa
    300% Strain 29.0MPa
Tensile Strength 33.1MPaASTM D412
Tensile Elongation (Break)340%ASTM D412
Tear Strength
    -- 1133kN/mASTM D624
    Split 30kN/mASTM D470
Compression Set (70°C, 22 hr)29%ASTM D395B
Bayshore Resilience 44%ASTM D2632
ThermosetNominal ValueUnit
Thermoset Components
    Hardener Mix Ratio by Weight: 18
    Resin Mix Ratio by Weight: 100
Pot Life 3.0min
Post Cure Time (100°C)16hr
Additional InformationNominal ValueUnit
Abrasion Index - NBS 300
Uncured PropertiesNominal ValueUnit
Curing Time (100°C)0.50hr
Note Message
1 .Die C
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