EPIKURE 3370 | Hexion Curing Agent
Low Viscosity, Modified Cycloaliphatic Amine, Cures In Epoxy Resin Systems At Normal Room Temperature
EPIKURE 3370 is a low viscosity, modified cycloaliphatic amine capable of effecting thorough cures in epoxy resin systems at normal room temperature. EPIKURE 3370 is an effective curing agent for many epoxy resins including both reactive diluent-modified and conventional bisphenol A types. The effects of the lower epoxide functionality of the diluentcontaining EPON* Resin 813, EPON 8132, and EPON 8101 are reflected by significant increases in extensibility (flexibility), and decreases in strength modulus and solvent resistance. Data confirms a significant improvement in overall chemical resistance compared to systems cured with typical aliphatic amine-based curing agents. EPIKURE 3370 can be combined with most aliphatic and cycloaliphatic curing agents to modify handling characteristics or cured state performance. Blending with EPIKURE 3271 or EPIKURE 3274 has been found to be particularly effective in altering the reactivity. Ultimate performance characteristics of such combinations depend on the level of modification and the performance profile of the aliphatic amine curing agent selected. In many applications, the excellent cured state properties of epoxy systems cured with EPIKURE Curing Agent 3370 allow for modification with non-reactive diluents to lower the system cost. Laboratory studies have shown that in most cases, properties are not critically affected by modifier concentrations of up to 20 parts by weight per hundred parts of resin (phr). The effects on handling and cured state properties of an EPON 828/EPIKURE 3370 system when modified with 20 phr of various commercially available nonreactive diluents. EPIKURE Curing Agent 3370 is hygroscopic. Depending on the surface-to-mass relationship, partiallyfilled, uncapped containers of this curing agent can absorb as much as ten weight percent of atmospheric moisture during an overnight storage period. Absorbed moisture readily complexes with this curing agent and results in the formation of a “skin” or sludge agglomeration on the surface. Once sludge formation occurs, the curing agent can only be reclaimed by removal of the solid by filtration or by blending it with fresh curing agent and heating to temperatures not to exceed 250 °F until the solid material reliquifies. Therefore, EPIKURE Curing Agent 3370 based systems must be stored in containers with tightly fitted lids to minimize exposure to the atmosphere prior to use.
Application Areas/Suggested Uses
- Light color castings
- Chemical resistant glaze, sealer and gel coatings
- Industrial floor toppings
- Tank linings
- Good overnight cure development
- Moderate resistance to blush or “sweat-out”
- High degree of chemical resistance
- Light color
|Amine value||g/eq||384.0-407.0||ASTM D2896|
|Viscosity at 25°C||cP||85-145||ASTM D2196|
|Equivalent weight, approx.||72|
|Flash point, Setaflash||°F||>200|
Safety, Storage & Handling
Please refer to the MSDS for the most current Safety and Handling information. Please refer to the Hexion web site for Shelf Life and recommended Storage information. Exposure to these materials should be minimized and avoided, if feasible, through the observance of proper precautions, use of appropriate engineering controls and proper personal protective clothing and equipment, and adherence to proper handling procedures. None of these materials should be used, stored, or transported until the handling precautions and recommendations as stated in the Material Safety Data Sheet (MSDS) for these and all other products being used are understood by all persons who will work with them. Information and MSDS’s on non-Hexion products should be obtained from the respective manufacturer.
Available in quart, gallon, 5 gallon, and 55 gallon drum sizes.
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.