BJB Polyurethane ST-1085 A/B

Category: TSU , Polyurethane Thermoset Elastomer
Manufacturer: BJB Enterprises, Inc.
Trademark: BJB Polyurethane
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: xZvqgv_BJB-Polyurethane-ST-1085-A-B.pdf
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ST-1085 A/B is a tough, multi-purpose polyurethane-polyurea elastomer, useful for many applications and performance requirements.

Special product characteristics are as follows:
  • Does not contain MOCA, MDA, or MDI
  • Very easy to use; may be pigmented easily
  • Cures at room temperature
  • High tear strength and toughness
  • Hardness and durability similar to high grade vulcanized rubber
General Information
Features
  • Good tear strength
  • Good coloring
  • Durability
  • Good toughness
  • Medium hardness
RoHS Compliance
  • RoHS compliance
Appearance
  • Transparent amber
Forms
  • Liquid
PhysicalNominal ValueUnitTest Method
Specific Gravity
    -- 11.06g/cm³
    -- 21.09g/cm³
    -- 1.10g/cm³ASTM D792
Specific Volume 0.928cm³/g
ThermosetNominal ValueUnitTest Method
Gel Time 35.0min
Work Time 3(25°C)25.0min
Additional InformationNominal ValueUnitTest Method
Cure Time 5.0 - 7.0day
PhysicalNominal ValueUnitTest Method
Molding Shrinkage - Flow 0.90%ASTM D2566
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore A)80 - 90ASTM D2240
ElastomersNominal ValueUnitTest Method
Tensile Stress ASTM D412
    100% strain 5.25MPaASTM D412
    200% strain 6.87MPaASTM D412
    300% strain 8.40MPaASTM D412
Tensile Strength (Break)14.7MPaASTM D412
Tensile Elongation (Break)600%ASTM D412
Tear Strength 44.7kN/mASTM D624
ThermosetNominal ValueUnitTest Method
Thermoset Components
    Component a Mixing ratio by weight: 100, mixing ratio by capacity: 100
    Component B Mixing ratio by weight: 55, mixing ratio by capacity: 57
Shelf Life 26wk
Thermoset Mix Viscosity Brookfield
    25°C 41060cPBrookfield
    25°C 56000cPBrookfield
    25°C 3600cPBrookfield
Demold Time (25°C)240 - 360min
Additional InformationNominal ValueUnitTest Method
Note: Physical properties obtained from test specimens post cured per recommended procedure.In order to achieve maximum physical properties, a post cure with heat is required. BJB recommends 24 hours at ambient temperature, 77°F (25°C), followed by 16 hours at 160°F (71°C).
Note Message
1 .Part B
2 .Part A
3 .100g mass
4 .Part B
5 .Part A
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