EpoxAcast® 670 HT

Category: Epoxy , Epoxy; Epoxide
Manufacturer: Smooth-On, Inc
Trademark: EpoxAcast®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: d630ds_EpoxAcast-670-HT.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
Wechat: WECHAT
Message
EpoxAcast® 670 HT (formerly 20-136) is an epoxy casting compound which offers high heat resistance up to350° F/177° C if post cure schedule is used. EpoxAcast® 670 HT features a relatively low viscosity that ensures minimal bubble entrapment. EpoxAcast® 670 HT also offers an extra long working time of 3 hours. Castings cure with negligible shrinkage and are very hard, very strong and heat resistant. EpoxAcast® 670 HT is ideal for making vacuum form molds, foundry patterns, forming dies & fixtures, hard rollers, industrial parts and high impact tools. EpoxAcast® 670 HT is also suitable for encapsulation applications or for use as a high temperature epoxy for bonding a variety of surfaces.
General Information
Features
  • Bondability
  • High Hardness
  • High Heat Resistance
  • High Strength
  • Low Shrinkage
  • Low Viscosity
Uses
  • Modeling Material
  • Molds/Dies/Tools
  • Patterns
  • Rollers
Appearance
  • Beige
Processing Method
  • Casting
  • Encapsulating
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.15g/cm³ASTM D1475
Specific Volume 0.741cm³/gASTM D792
Additional InformationNominal ValueUnitTest Method
Cure Time 11.0day
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore D)90ASTM D2240
MechanicalNominal ValueUnitTest Method
Tensile Modulus 2290MPaASTM D638
Tensile Strength (Break)31.0MPaASTM D638
Tensile Elongation (Break)0.65%ASTM D638
Flexural Modulus 1750MPaASTM D790
Flexural Strength 75.8MPaASTM D790
Compressive Modulus 699MPaASTM D695
Compressive Strength 89.6MPaASTM D695
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load ASTM D648
    0.45 MPa, Unannealed 2177°C
    0.45 MPa, Unannealed 3122°C
ThermosetNominal ValueUnitTest Method
Thermoset Components
    Part A Mix Ratio by Weight: 100
    Part B Mix Ratio by Weight: 16
Pot Life 180minASTM D2471
Thermoset Mix Viscosity 6000cPASTM D2393
Note Message
1 .followed by: Heat cure for 2 hrs at 175°F/80°C followed by 3 hrs at 300°F/150°C
2 .if post cured according to heat curing schedule
3 .If cured at room temperature
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