Smooth-On / Material reference
EpoxyEpoxAcast™ 690
EpoxAcast™ 690 is listed by Smooth-On as an epoxy resin system. The source reports mixed viscosity of 280 cps, mix ratio by weight of 100A:30B, pot life of 5 hours. This record connects 18 reported fields with 19 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.
280 cpsManufacturer-reported
100A:30BManufacturer-reported
5 hoursManufacturer-reported
24 hoursManufacturer-reported
80Manufacturer-reported
1.10 g/ccManufacturer-reported
Technical & safety documents
19 linksFiles open on the manufacturer's document host. Region and language follow the source listing; confirm the revision inside the file.
Technical BulletinEnglish · Not specified
Open file Creating Epoxy TablesEnglish · Not specified
Open file EpoxAcast 690 SDS | EnglishEnglish · United States & Canada
Open file EpoxAcast 690 SDS | SpanishSpanish · United States & Canada
Open file EpoxAcast 690 SDS | FrenchFrench · United States & Canada
Open file EpoxAcast 690 SDS | EnglishEnglish · South & Central America
Open file EpoxAcast 690 SDS | SpanishSpanish · South & Central America
Open file EpoxAcast 690 SDS | EnglishEnglish · United Kingdom & European Union
Open file EpoxAcast 690 SDS | SpanishSpanish · United Kingdom & European Union
Open file EpoxAcast 690 SDS | FrenchFrench · United Kingdom & European Union
Open file EpoxAcast 690 SDS | GermanGerman · United Kingdom & European Union
Open file EpoxAcast 690 SDS | ItalianItalian · United Kingdom & European Union
Open file EpoxAcast 690 SDS | GreekGreek · United Kingdom & European Union
Open file EpoxAcast 690 SDS | DutchDutch · United Kingdom & European Union
Open file EpoxAcast 690 SDS | PolishPolish · United Kingdom & European Union
Open file EpoxAcast 690 SDS | CzechCzech · United Kingdom & European Union
Open file EpoxAcast 690 SDS | HungarianHungarian · United Kingdom & European Union
Open file EpoxAcast 690 SDS | NorwegianNorwegian · United Kingdom & European Union
Open file EpoxAcast 690 SDS | EnglishEnglish · Australia & New Zealand
Open file Reported specifications
18 fieldsMaterial and processing data
| Property | Reported value | Evidence |
|---|---|---|
| Mixed Viscosity | 280 cps | Manufacturer table |
| Color | Clear | Manufacturer table |
| Mix Ratio By Weight | 100A:30B | Manufacturer table |
| Pot Life | 5 hours | Manufacturer table |
| Cure Time | 24 hours | Manufacturer table |
| Shore D Hardness | 80 | Manufacturer table |
| Specific Gravity | 1.10 g/cc | Manufacturer table |
| Specific Volume | 25 cu. in./lb. | Manufacturer table |
| Compressive Strength | 9,610 psi | Manufacturer table |
| Flexural Modulus | 410,000 psi | Manufacturer table |
| Flexural Strength | 10,980 psi | Manufacturer table |
| Heat Deflection Temp | 115 °F | Manufacturer table |
| Index of Refraction at 20°C | 1.565 | Manufacturer table |
| Shrinkage | 0.002 in./in. | Manufacturer table |
| Tensile Modulus | 572,000 psi | Manufacturer table |
| Tensile Strength | 6,630 psi | Manufacturer table |
| Tensile Elongation | 1.8 % | Manufacturer table |
| Compressive Modulus | 91,300 psi | Manufacturer 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:30B. 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 / manufacturer | Family | Key specification | Documents | Add to comparison |
|---|---|---|---|---|
| EPO-TEK® B9021 | Epoxy | 4,000 - 8,000 | cPs | 2 linked | |
| EPO-TEK® 343ND-LH | Epoxy | 2,580 cPs | 3 linked | |
| EPO-TEK® B9101-2 Unfilled | Epoxy | 1,000 - 1,300 cPs | 2 linked | |
| EPO-TEK® B9126-8 | Epoxy | 11,000-18,500 | cPs | 2 linked |