BJB Polyurethane TC-850 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: 0NWeSz_BJB-Polyurethane-TC-850-A-B.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
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Message
TC-850 A/B produces a high impact rigid 75 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. It provides a working time of 6 - 7 minutes.

PRODUCT HIGHLIGHTS:
  • Non-Mercury Based Catalyst System
  • One to two hour demold time
  • High impact rigid material
  • Excellent for vacuum or pressure casting
  • Odorless, clean white
  • Low viscosity
General Information
Features
  • Low viscosity
  • Rigidity, high
  • Impact resistance, high
  • The smell is low to none
Uses
  • Electrical/Electronic Applications
  • Shell
RoHS Compliance
  • RoHS compliance
Appearance
  • White
  • Opacity
Forms
  • Liquid
Processing Method
  • Enclosure
  • Casting
PhysicalNominal ValueUnitTest Method
Specific Gravity
    -- 11.06g/cm³
    -- 21.10g/cm³
    -- 1.12g/cm³ASTM D792
Specific Volume 0.925cm³/g
Shrinkage 30.60%
ThermosetNominal ValueUnitTest Method
Gel Time 7.0 - 8.0min
Work Time 4(25°C)6.0 - 7.0min
Additional InformationNominal ValueUnitTest Method
Cure Time (25°C)5.0 - 7.0day
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore D)73 - 77ASTM D2240
MechanicalNominal ValueUnitTest Method
Tensile Modulus 1450MPaASTM D638
Tensile Strength (Yield)46.9MPaASTM D638
Tensile Elongation (Yield)10%ASTM D638
Flexural Modulus 1670MPaASTM D790
Flexural Strength 67.6MPaASTM D790
ImpactNominal ValueUnitTest Method
Notched Izod Impact 35J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load ASTM D648
    0.45 MPa, not annealed 95.0°CASTM D648
    1.8 MPa, not annealed 89.4°CASTM D648
ThermosetNominal ValueUnitTest Method
Thermoset Components
    Component a Mixing ratio by weight: 100, mixing ratio by capacity: 100
    Component B Mixing ratio by weight: 50, mixing ratio by capacity: 52
Shelf Life 26wk
Thermoset Mix Viscosity ASTM D2393
    25°C 5160cPASTM D2393
    25°C 61350cPASTM D2393
    25°C 775.0cPASTM D2393
Demold Time (25°C)60 - 120min
Additional InformationNominal ValueUnitTest Method
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°F (25°C), followed by 16 hours at 180°F (82°C). Support of the part may be required to prevent part deformation during heat cure.
Note Message
1 .Part B
2 .Part A
3 .12" x 1/2" x 1/2"
4 .100g mass
5 .Mixed
6 .Part B
7 .Part A
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