Print Version (PDF) [ close ]   

Technical Data Sheet

Re-issued September 2011



EPIKURE™ Curing Agent 3502



Product Description

EPIKURE™ Curing Agent 3502 is a reaction product of ethylenediamine and methyl isobutyl ketone. This low viscosity ketimine curing agent is recommended for specialized marine, maintenance, automotive, flooring and adhesive formulations.


Application Areas/Suggested Uses

  • This curing agent is recommended for use in combination with other amine curing agents in high solids maintenance and marine coatings that can be applied with conventional application equipment. Dry film build of 8-10 mils can be achieved in a one coat application.
  • This curing agent can be used in adhesives and industrial flooring applications up to 8-10 mils in dry film thickness.
  • EPIKURE Curing Agent 3502 can be combined with other curing agents to lower viscosity and extend the pot life of certain formulations.



  • Low viscosity
  • Imparts extended pot life of 7-8 hours to high solids coatings and adhesives
  • Systems based on EPIKURE Curing Agent 3502 need only conventional application equipment
  • EPIKURE Curing Agent 3502 provides similar performance when compared to unmodified aliphatic amines or amine adducts


Sales Specification




Test Method/Standard

Basic Nitrogen

% (m)

11.0 – 14.0

ASTM D2896

Viscosity at 25°C


6 – 11

ASTM D2196



8 max.

ASTM D1544


Typical Properties




Test Method/Standard

Equivalent weight, approx.




Density at 25°C



ASTM D1475





Available polyamine content

% wt.




% vol.



Vapor Pressure

mm Hg



Flash Point



Pensky Martin Closed Cup.

Physical Form


Clear light amber liquid




General Information


Product Formulary

Starting Formulation No. 1013, Ambient-Cure White Enamel


Recommended Proportions

As with many other curing agents, the optimum quantity of curing agent with a certain epoxy resin may vary somewhat from the stoichiometric concentration. Therefore, it is recommended that EPIKURE Curing Agent 3502 be examined at levels varying from about 25% below the stoichiometric concentration to about 25% above. For your convenience, stoichiometric values of EPIKURE Curing Agent 3502 with a number of EPON™ Resins are tabulated below:




EPON™ Resin 815, 826, 828


EPON Resin 834


EPON Resin 1001F


EPON Resin 1002F


EPON Resin 1007F




1 Parts of curing agent per 100 parts of neat epoxy resin.



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.


EPKURE Curing Agent 3502 is a very low viscosity ketimine curing agent. This particular ketimine may absorb moisture and carbon dioxide if left in open containers. This may result in some haziness to the product. Therefore, EPIKURE Curing Agent 3502 should be kept in tightly closed containers when not in use and stored in a cool dry place. EPIKURE Curing Agent 3502 is classified as a corrosive and flammable liquid.


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. Questions and requests for information on Hexion, Inc. ("Hexion") products should be directed to your Hexion sales representative, or the nearest Hexion sales office. Information and MSDSs on non-Hexion products should be obtained from the respective manufacturer.



Available in bulk and drum quantities.



Contact Information

For product prices, availability, or order placement, please contact customer service: 


For literature and technical assistance, visit our website at:


® and ™ Licensed trademarks of Hexion Inc.


The information provided herein was believed by Hexion Inc. (“Hexion”) to be accurate at the time of preparation or prepared from sources believed to be reliable, but it is the responsibility of the user to investigate and understand other pertinent sources of information, to comply with all laws and procedures applicable to the safe handling and use of the product and to determine the suitability of the product for its intended use. All products supplied by Hexion are subject to Hexion’s terms and conditions of sale. HEXION MAKES NO WARRANTY, EXPRESS OR IMPLIED, CONCERNING THE PRODUCT OR THE MERCHANTABILITY OR FITNESS THEREOF FOR ANY PURPOSE OR CONCERNING THE ACCURACY OF ANY INFORMATION PROVIDED BY HEXION, except that the product shall conform to Hexion’s specifications. Nothing contained herein constitutes an offer for the sale of any product.

Print Version (PDF) [ close ]