EPIKURE 3295 | Hexion Curing Agent
Very Low Viscosity Aliphatic Amine Adduct, Can Be Diluted With Water
EPIKURE 3295, a very low viscosity aliphatic amine adduct, is recommended for curing epoxy resins at room or moderately elevated temperatures. Its reduced vapor pressure, less critical combining ratio, superior electrical properties, and non-fuming characteristics make it safer and more convenient to handle than the aliphatic polyamines such as diethylenetriamine. EPIKURE 3295 is ideally suited for many casting, laminating, and impregnation operations and certain coating applications. It can be diluted with water and is useful as a curing agent for aqueous resin systems.
Application Areas/Suggested Uses
- Brush head potting compounds
- Laminated and cast tooling
- High-build maintenance coatings
- High-build maintenance coatings
|Amine value||mg/g||881 – 961||ASTM D2896|
|Viscosity at 25°C||cP||125 – 205||ASTM D2196|
|Color||Gardner||3 max.||ASTM D1544|
|Equivalent weight, approx.||45|
|Pounds/gallon @ 25 °C||lbs/gal||8.28||ASTM D1475|
EPIKURE Curing Agent 3295 is relatively reactive and imparts a high degree of rigidity and mechanical strength to cured systems. The pot life, exothermic temperature rise and curing time of compositions containing EPIKURE 3295 depend on batch size, filler type, filler loading, and temperature. For example, a 1-pound batch of a mixture containing EPON™ Resin 828 and EPIKURE Curing Agent 3295 blended at room temperature has a pot life of less than 20 minutes and develops a maximum temperature above 200 °C (392 °F). Unfilled compositions based on EPON 828 and EPIKURE 3295, in thin sections where exothermic heat is readily dissipated, require 6 to 12 hours at room temperature to gel and develop handling strength; full strength is reached after several days. Although castings as thick as 1 inch can be prepared under carefully controlled conditions, the maximum thickness recommended for the unfilled composition is about 1/2 inch. At this thickness the composition’s exotherm temperature rises to 120 °C when cast at room temperature, and handling strength develops in about 30 minutes. While thin sections can be cured rapidly at moderately elevated temperatures, thicker sections should be allowed to gel at room temperature before curing at elevated temperatures. A cure at room temperature requires several days, but the properties, as shown in Table 1, are improved with a post cure of 2 hours at 100 °C. For castings thicker than 1/2 inch, a mixture of EPIKURE Curing Agent 3295 and EPIKURE Curing Agent 3046 should be used. Addition of an inert filler to the composition reduces the exothermic temperature rise of the system making possible the preparation of larger castings. For low viscosity applications, EPIKURE Curing Agent 3295 can be used with reactive diluents or diluentcontaining blends such as EPON Resin 815 and EPON Resin 813. Of the low viscosity, reactive diluentcontaining systems, EPON 813 provides the best strength properties while EPON 815 imparts higher impact strength. Flexibility can be imparted to systems cured with EPIKURE 3295 by including in the epoxy resin portion a flexibilizing epoxy resin such as HELOXY™ Modifiers, 32 or 505 or EPON Resin 832.
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. EPIKURE Curing Agent 3295 should be stored in tightly sealed containers, in a dry location at normal room temperature. 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 MSDSs 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.