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EPON 834
BPA Based Epoxy Resin That is Semi-Solid At Room Temperature, Improved Toughness, Tack and Cure Speed Over Unmodified Liquid Epoxies
Product Description
EPON 834 is a BPA based epoxy resin that is semi-solid at room temperature. Systems using EPON 834 can be formulated to be useful in a variety of high solids and tar modified coatings, high toughness adhesives, laminating, and prepreg molding materials. Because of its higher molecular weight, EPON Resin 834 provides enhanced system reactivity, surface tack and cured resin toughness in comparison to liquid grade BPA epoxies, but reduces elevated temperature performance. EPON Resin 834 is especially useful in applications requiring extra surface tack, cure speed or toughness but cannot tolerate additives or modifiers.
Benefits
- May be blended with other epoxy resin
- Semi-solid at room temperature, pourable at slightly elevated temperatures
- May be used to produce 10 to 15 mil films with high adhesion
- Improved toughness, tack and cure speed over unmodified liquid epoxies
Sales Specification
| Property | Units | Value | Test Method/Standard |
| Weight per Epoxide | g/eq | 235 – 263 | ASTM D1652 |
| Viscosity at 25°C | cP | 2.1 – 2.4 | ASTM D445 |
| Color | 200 max. | ASTM D1209 | |
Typical Properties
| Property | Units | Value | Test Method/Standard |
| Density at 25°C | lb/gal | 9.7 | ASTM D1475 |
General Information
A wide variety of curing agents can be used with EPON Resin 834, including aliphatic amines, amidoamines, amine adducts, polyamides, and cycloaliphatic amines. EPON 834 is amenable to formulation of high solids coatings, adhesives, and prepregs due to its moderate molecular weight, film forming ability, and inherent toughness. It is especially useful as a base resin in adhesives, sealants, potting and encapsulation. With gentle heating, EPON Resin 834 can be handled like liquid BPA epoxies. Generally temperatures of 140° to 160 °F are adequate to ease dispensing and mixing. After mixing, many formulations may be at usable viscosties at room temperature, since many curing agents and additives will lower system viscosities. In coating applications, EPON 834 may be initially incompatible with the curing agent used. As the chemical reaction between the two proceeds, compatibility develops. Using the system too soon after mixing can result in “blushing” or other film defects. Blushing can often be prevented by using an induction period to allow compatibility to develop before applying the coating. Required induction periods will differ with each resin system.
Miller-Stephenson is an Epon 834 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.