BJB Polyurethane TC-852 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: 1RiMBv_BJB-Polyurethane-TC-852-A-B.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
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Message
TC-852 A/B produces a high impact, rigid 78 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. TC-852 A/B is an excellent hand-castable product that produces parts with heat deflection temperatures up to 220°F (104°C).

Product Highlights:
  • Non-Mercury Based Catalyst System
  • RoHS compliant
  • High impact rigid material
  • Odorless, clean white color
  • One to two hour demold time
  • Excellent for vacuum or pressure casting
  • Low viscosity
  • Exhibits exceptional high heat distortion temperature
General Information
Features
  • Low viscosity
  • Rigidity, high
  • Impact resistance, high
  • Heat resistance, high
  • The smell is low to none
Uses
  • Electrical/Electronic Applications
  • Shell
RoHS Compliance
  • RoHS compliance
Appearance
  • Opacity
  • White-like
Forms
  • Liquid
PhysicalNominal ValueUnitTest Method
Specific Gravity
    -- 11.05g/cm³
    -- 21.12g/cm³
    -- 1.15g/cm³ASTM D792
Shrinkage 30.40%
ThermosetNominal ValueUnitTest Method
Gel Time 5.0min
Work Time 4(25°C)4.5min
Additional InformationNominal ValueUnitTest Method
Cure Time (25°C)5.0 - 7.0day
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore D)76 - 80ASTM D2240
MechanicalNominal ValueUnitTest Method
Tensile Modulus 1650MPaASTM D638
Tensile Strength 48.3MPaASTM D638
Tensile Elongation (Break)12%ASTM D638
Flexural Modulus 1860MPaASTM D790
Flexural Strength 72.4MPaASTM D790
ImpactNominal ValueUnitTest Method
Unnotched Izod Impact 37J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load ASTM D648
    0.45 MPa, not annealed 102 - 107°CASTM D648
    1.8 MPa, not annealed 90.6 - 96.1°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: 53
Shelf Life 26wk
Thermoset Mix Viscosity Brookfield
    25°C 51450cPBrookfield
    25°C 670.0cPBrookfield
    25°C 250cPBrookfield
Demold Time (25°C)60 - 120min
Additional InformationNominal ValueUnitTest Method
Note: Reported physical properties are based on test specimens cured at an elevated temperature, 180°F (82°C).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 150-180°F (66-82°C). Support of the part may be required to prevent part deformation during the heat curing process.
Note Message
1 .Part B
2 .Part A
3 .12" x 1/2" x 1/2"
4 .100g mass
5 .Part B
6 .Part A
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