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Epoxy

EpoxAcast™ 655 + HT Hardener

EpoxAcast™ 655 + HT Hardener is listed by Smooth-On as an epoxy resin system. The source reports mixed viscosity of 12,000 cps, mix ratio by weight of 100A:8B, pot life of 4 hours. This record connects 16 reported fields with 19 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.

Technical data sheet Safety data sheet
12,000 cpsManufacturer-reported
100A:8BManufacturer-reported
4 hoursManufacturer-reported
29 hoursManufacturer-reported
90Manufacturer-reported
1.64 g/ccManufacturer-reported

Technical & safety documents

19 links
Files open on the manufacturer's document host. Region and language follow the source listing; confirm the revision inside the file.
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TDS
Technical BulletinEnglish · Not specified
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SDS
EpoxAcast 655 (Part A) SDS | EnglishEnglish · United States & Canada
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SDS
HT Hardener (Part B) SDS | EnglishEnglish · United States & Canada
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SDS
HT Hardener (Part B) SDS | SpanishSpanish · United States & Canada
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SDS
HT Hardener (Part B) SDS | FrenchFrench · United States & Canada
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SDS
HT Hardener (Part B) SDS | EnglishEnglish · South & Central America
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SDS
HT Hardener (Part B) SDS | SpanishSpanish · South & Central America
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SDS
HT Hardener (Part B) SDS | EnglishEnglish · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | SpanishSpanish · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | FrenchFrench · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | GermanGerman · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | ItalianItalian · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | GreekGreek · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | DutchDutch · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | PolishPolish · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | CzechCzech · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | HungarianHungarian · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | NorwegianNorwegian · United Kingdom & European Union
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SDS
HT Hardener (Part B) SDS | EnglishEnglish · Australia & New Zealand
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Reported specifications

16 fields
Material and processing data
PropertyReported valueEvidence
Mixed Viscosity12,000 cpsManufacturer table
ColorGreyManufacturer table
Mix Ratio By Weight100A:8BManufacturer table
Pot Life4 hoursManufacturer table
Cure Time29 hoursManufacturer table
Shore D Hardness90Manufacturer table
Specific Gravity1.64 g/ccManufacturer table
Specific Volume16.5 cu. in./lb.Manufacturer table
Compressive Strength15,700 psiManufacturer table
Heat Deflection Temp225 °FManufacturer table
Shrinkage0.001 in./in.Manufacturer table
Tensile Modulus7,200,000 psiManufacturer table
Thermal Conductivity0.675 W/M*KManufacturer table
Ultimate Tensile6,000 psiManufacturer table
Tensile Elongation0.50 %Manufacturer table
Compressive Modulus270,000 psiManufacturer table
Reported values are not independent test results. Original units and table wording are preserved. Extracted TDS rows can depend on the grade, component and source table headings; use the linked page to verify that context. Test methods, sample preparation and cure schedules may differ; consult the original TDS before making a performance comparison.

Selection & processing checks

Compare the complete resin–hardener system. A different hardener or cure schedule can change the cured properties.

  • Is the stated ratio by weight or by volume?
  • Do the thermal and mechanical values use the same cure schedule?
  • Is the formulation designed for casting, bonding or encapsulation?
  • Confirm the complete product designation, including any hardener, color or formulation suffix.
  • Read the current SDS for handling, protective equipment, storage and disposal information.

The reported weight ratio for this record is 100A:8B. A weight ratio must not be used as a volume ratio without the appropriate density information.

Missing properties are not estimated. Similar values or shared application labels do not establish a drop-in replacement.

Other materials in this family

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Material / manufacturerFamilyKey specificationDocumentsAdd to comparison
50-3170Epoxies, Etc.EpoxyEpoxyTechnology4 linked
EPO-TEK® 353ND-LH PremiumEpoxy TechnologyEpoxy3,744 cPsViscosity (23°C) @ 50 rpm2 linked
EPO-TEK® 353ND-LH UltraEpoxy TechnologyEpoxy3,720 cPsViscosity (23°C) @ 50 rpm3 linked
20-3060Epoxies, Etc.Epoxy10,000Viscosity, cps, 25 C, Mixed5 linked
Related records are browsing suggestions, not validated substitutes.