BJB Polyurethane TC-854 A/B

Category: PUR, Unspecified , Polyurethane
Manufacturer: BJB Enterprises, Inc.
Trademark: BJB Polyurethane
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: nrBqBR_BJB-Polyurethane-TC-854-A-B.pdf
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Message
TC-854 A/B is a rigid 84 Shore D polyurethane system that exhibits exceptional physical properties. It is a high performance material that features high heat deflection capability and a low shrink factor. TC-854 is a highly translucent, colorless casting material that allows for unrestricted tinting and precise color matching. This product is ideal for producing intrinsically colored parts requiring a non-painted finish. This product can be easily processed for hand-cast, meter-mix- dispense, or vacuum cast applications.

Product Highlights:
  • Non-Mercury Based Catalyst System
  • High impact rigid material
  • Odorless, translucent
  • Excellent for hand, vacuum or pressure casting
  • Low viscosity
  • Exhibits high heat distortion temperature
General Information
Features
  • Low viscosity
  • Impact resistance, good
  • Good coloring
  • Heat resistance, high
  • The smell is low to none
  • Low shrinkage
RoHS Compliance
  • RoHS compliance
Appearance
  • Yellow
  • Clear/transparent
Forms
  • Liquid
Processing Method
  • Casting
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.20g/cm³ASTM D792
Specific Gravity
    Part A : 25°C 1.167g/cm³
    Part B : 25°C 1.067g/cm³
Shrinkage 10.10%
ThermosetNominal ValueUnit
Gel Time 7.0 - 9.0min
Work Time (25°C) 26.0 - 8.0min
Fill AnalysisNominal ValueUnit
Brokfield Viscosity
    Mixed : 25°C 450mPa·s
    Part A : 25°C 165mPa·s
    Part B : 25°C 725mPa·s
Additional InformationNominal ValueUnit
Cure Time (25°C) 5.0 - 7.0day
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore D)82 - 86ASTM D2240
MechanicalNominal ValueUnitTest Method
Tensile Modulus 2280MPaASTM D638
Tensile Strength 69.4MPaASTM D638
Tensile Elongation (Break)11%ASTM D638
Flexural Modulus 2480MPaASTM D790
Flexural Strength 94.5MPaASTM D790
ImpactNominal ValueUnitTest Method
Notched Izod Impact 61J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load ASTM D648
    0.45 MPa, not annealed 85.0 - 90.6°CASTM D648
    1.8 MPa, not annealed 73.9 - 79.4°CASTM D648
ThermosetNominal ValueUnit
Thermoset Components
    Component a Mixing ratio by weight: 100, mixing ratio by capacity: 100
    Component B Mixing ratio by weight: 60, mixing ratio by capacity: 66
Shelf Life 26wk
Demold Time (25°C)120 - 180min
Additional InformationNominal ValueUnit
Note: Reported physical properties based on elevated temperature cured test specimens.In order to achieve maximum physical properties, a post cure with heat is required. BJB recommends 24 hours at ambient temperature, 77° (25°C), followed by 16 hours at 150-180°F (66-82°C). Support of the part may be required to prevent part deformation during heat cure.
Note Message
1 .12" x 1/2" x 1/2"
2 .100g mass
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