BJB Polyurethane TC-821 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: GDNfsd_BJB-Polyurethane-TC-821-A-B.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
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Message
TC-821 A/B produces a high impact rigid 84 Shore D material that is commonly used to make computer housings, models of all kinds, artwork, and can also be used for electronic component encapsulation.

Product Highlights:
  • Convenient 1:1 by volume ratio
  • Non-mercury catalyst system
  • RoHS compliant
  • High impact rigid material
  • Translucent-Easy to color
  • Fast demolds
  • Excellent for vacuum, pressure, hand, and rotational casting
  • Exhibits high heat distortion temperature
General Information
Features
  • High Heat Resistance
  • High Impact Resistance
Uses
  • Electrical/Electronic Applications
  • Housings
RoHS Compliance
  • RoHS Compliant
Appearance
  • Translucent
Forms
  • Liquid
Processing Method
  • Casting
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.18g/cm³ASTM D792
Specific Gravity
    Part A : 25°C 1.187g/cm³
    Part B : 25°C 1.057g/cm³
Shrinkage 10.50%
ThermosetNominal ValueUnit
Demold Time (25°C) 30.0 to 60.0min
Work Time (25°C) 22.0min
Fill AnalysisNominal ValueUnit
Brookfield Viscosity
    Mixed : 25°C 1.20Pa·s
    Part A : 25°C 0.0600Pa·s
    Part B : 25°C 2.30Pa·s
Additional InformationNominal ValueUnit
Cure Time (25°C) 5.0 to 7.0day
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore D)82 to 86ASTM D2240
MechanicalNominal ValueUnitTest Method
Tensile Modulus 1650MPaASTM D638
Tensile Strength (Yield)52.4MPaASTM D638
Tensile Elongation (Yield)12%ASTM D638
Flexural Modulus 2070MPaASTM D790
Flexural Strength 79.3MPaASTM D790
ImpactNominal ValueUnitTest Method
Notched Izod Impact 40J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load ASTM D648
    0.45 MPa, Unannealed 90.6°C
    1.8 MPa, Unannealed 76.7°C
ThermosetNominal ValueUnit
Thermoset Components
    Part A Mix Ratio by Weight: 100, Mix Ratio by Volume: 100
    Part B Mix Ratio by Weight: 90, Mix Ratio by Volume: 100
Shelf Life 26wk
Note Message
1 .12" x 1/2" x 1/2"
2 .100g
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