Print Version (PDF) [ close ]   

Technical Data Sheet


Re-issued September 2001



EPON™ Resin 8521-MX-60



Product Description

EPON Resin 8521-MX-60 is a 60 percent solids solution of an EPON Resin 1004F type epoxy resin in 50 percent xylene and 50 percent 2-butoxyethanol. This resin was designed primarily for use with a suitable curing agent to obtain complete film curing at normal room temperatures. EPON Resin 8521-MX-60 has been modified to improve its surface tension properties. Therefore, it does not normally require additives for prevention of crawling and cratering.



Sales Specification




Test Method/Standard

Viscosity at 25°C 1


Y – Z2

ASTM D1545



3 max.

ASTM D1544


% wt.

59.0 – 61.0






1 ASTM D1545 (Gardner-Holdt - Bubble Time Method), determined on resin solution as supplied.


Typical Properties




Test Method/Standard

Weight per Epoxide, based on nonvolitles



ASTM D1652

Viscosity at 25°C, reduced 1



ASTM D1545

Density at 25°C, Solution




Density at 25°C, nonvoliles, calculated




Acid Value




Flashpoint, Setaflash






2-butoxyethanol / Xylene


Solvent ratio








1 Reduced to 50 percent nonvolatiles in 50 percent xylene and 50 percent 2-butoxyethanol.



Processing/How to use


General Information

A wide variety of curing agents can be used with EPON Resin 8521-MX-60. Those most commonly used are the aliphatic amines, amine adducts, the tertiary amines, and the polyamides.


The usual high levels of chemical resistance, corrosion resistance, flexibility and adhesion properties associated with the unmodified epoxies are provided by films of EPON Resin 8521-MX-60. It is suggested for use in the formulation of primers and enamels for industrial maintenance areas where corrosive fumes are a serious problem. This epoxy resin is also useful for large pieces of equipment for which a baking system is not practical.


Typical of many epoxy resins, EPON Resin 8521-MX-60 is initially incompatible with many of the curing agents used. As the chemical reaction proceeds, compatibility develops. Use of the system too soon after mixing can result in “blushing” or other film defects; to prevent this, an induction period is required. Not over 2.5 mils dry film should be applied per coat allowing approximately 40 hours between coats.



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. 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 ]