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EPON 8281
Great Viscosity Stability Comparable To Other Conventional Liquid EPON Resins, Excellent Resistance To Pigment And Filler Settling
EPON 8281 was developed for use in formulating highly filled compounds, particularly those with high levels of silica-type fillers. This resin allows the formulator to compound materials suitable for use in a wide variety of products, including adhesives, electrical encapsulants and molding compounds, tooling compounds, and most construction end uses.
Application Areas/Suggested Uses
● Electrical encapsulation
● High solids coatings
EPON 8281 Benefits
● Excellent resistance to pigment and filler settling
● Low saponifiable chlorine level
● Superior resistance to foaming under vacuum
● Viscosity stability comparable to other conventional liquid EPON Resins
Sales Specification
| Property | Units | Value | Test Method/Standard |
| Weight per Epoxide | g/eq | 182 – 195 | ASTM D1652 |
| Viscosity at 25°C | P | 110 – 140 | ASTM D445 |
| Color | Gardner | 1 max. | ASTM D1544 |
Typical Properties
| Property | Units | Value | Test Method/Standard |
| Density at 25°C | P | 9.7 | ASTM D445 |
| Saponifiable chlorine | % wt. | 0.027 | |
| Water content | % wt. | 0.034 | |
| Sodium content | ppm | 0.1 |
Processing/How to use
General Information Formulations using EPON Resin 8281 meet the requirements of the electronics industry for electrical and dimensional stability, high physical strength, excellent chemical resistance and good electrical properties Filler Settling Characteristics EPON Resin 8281 exhibits superior resistance to filler settling. In the most severe test, 72 hours at 60 °C, EPON Resin 8281 exhibited no settling of filler. This was measured by incorporating 50% by weight silica filler, under high shear conditions, into EPON Resin 8281. After evacuating the entrapped air, the mixture was placed in a 60 °C oven for 72 hours. The mixture was removed from the oven and by use of a metal stirring rod, tested for any filler build-up on the bottom or sides of the container.
Miller-Stephenson is an Epon 8281 Supplier and certified from Hexion for direct distribution, technical support, and formulation modifications. . For Technical Service Question please click here
Krytox™ is a trademark of The Chemours Company FC, LLC.
The recommendation made here with and the information set forth with respect to the performance or use of our products are believed, but not warranted to be accurate. The products discussed are sold without warranty, as to fitness or performance, express or implied and upon condition that purchasers shall make their own test to determine suitability of such products for their particular purposes. Likewise, statements concerning the possible uses of our products are not intended as recommendations to use our products in the infringement of any patent.