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Epoxy

EpoxAcast™ 650 BLACK + 103 Hardener

EpoxAcast™ 650 BLACK + 103 Hardener is listed by Smooth-On as an epoxy resin system. The source reports mixed viscosity of 7,000 cps, mix ratio by weight of 100A:14B, pot life of 3.5 hours. This record connects 22 reported fields with 3 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.

Technical data sheet Safety data sheet
7,000 cpsManufacturer-reported
100A:14BManufacturer-reported
3.5 hoursManufacturer-reported
24 hoursManufacturer-reported
1.52 g/ccManufacturer-reported

Technical & safety documents

3 links
Files open on the manufacturer's document host. Region and language follow the source listing; confirm the revision inside the file.
Open original PDF
TDS
Technical BulletinEnglish · Not specified
Open file
SDS
EpoxAcast 650 BLACK (Part A) SDS | EnglishEnglish · United States & Canada
Open file
SDS
103 Hardener (Part B) SDS | EnglishEnglish · United States & Canada
Open file

Reported specifications

22 fields
Material and processing data
PropertyReported valueEvidence
Mixed Viscosity7,000 cpsManufacturer table
ColorBlackManufacturer table
Mix Ratio By Weight100A:14BManufacturer table
Pot Life3.5 hoursManufacturer table
Cure Time24 hoursManufacturer table
Barcol 935 Hardness93Manufacturer table
Specific Gravity1.52 g/ccManufacturer table
Specific Volume18.22 cu. in./lb.Manufacturer table
Compressive Strength16,350 psiManufacturer table
Flexural Modulus710,000 psiManufacturer table
Flexural Strength5,890 psiManufacturer table
Heat Deflection Temp129 °FManufacturer table
Shrinkage0.001 in./in.Manufacturer table
Tensile Modulus1,503,000 psiManufacturer table
Ultimate Tensile6,000 psiManufacturer table
Volume Resistance>5.42E+11 ohmManufacturer table
Volume Resistivity>3.59E+15 ohm/cmManufacturer table
Dielectric Strength404 volts/milManufacturer table
Tensile Elongation0.42 %Manufacturer table
Compressive Modulus142,600 psiManufacturer table
Dielectric Constant k' @ 60Hz5.3Manufacturer table
Dielectric Constant k' @ 1kHz5.08Manufacturer 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:14B. 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

View collection
Material / manufacturerFamilyKey specificationDocumentsAdd to comparison
EPO-TEK® H20EEpoxy TechnologyEpoxy2,200 - 3,200 cPsViscosity (23°C) @ 100 rpm3 linked
EPO-TEK® MED-353NDPEpoxy TechnologyEpoxy3,600 cPsViscosity (23°C) @ 50 rpm2 linked
EPO-TEK® 310M-2Epoxy TechnologyEpoxy250 - 325 cPsViscosity (23°C) @ 100 rpm3 linked
EPO-TEK® 353ND BlackEpoxy TechnologyEpoxy3,000 - 5,000 cPsViscosity (23°C) @ 50 rpm3 linked
Related records are browsing suggestions, not validated substitutes.