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Technical Data Sheet 


Issued July 2016


EPIKOTE™ Resin 3547-WY-57A


Product Description 

EPIKOTE™ Resin 3547-WY-57A is a nonionic dispersion of a high molecular weight BPA epoxy resin in water and 2-propoxyethanol (EGMPE).  It was developed to be similar to EPIKOTE Resin 3540-WY-55A and to be compositionally compliant with many regulations for incidental food contact applications.


Application Areas/Suggested Uses

  • Size treatments for inorganic and organic fibers, particularly in applications for reinforcement of thermoplastic resin systems such as PBT and PET
  • Textile binders
  • Film adhesives
  • Clear and pigmented bake coatings
  • Modifier for other waterborne epoxy resins



  • Moderate viscosity for ease of handling
  • Excellent particle size stability
  • Good discoloration resistance at high temperatures
  • May be formulated for low VOC coatings
  • Can be cured through epoxide and hydroxyl functional groups


Sales Specifications








Test   Method/Standard


Epoxide Equivalent Weight




1600 – 2000


ASTM D1652


Epoxy Group Content




500 – 625


ASTM D1652


Solids Content




56.0 – 58.0


ASTM D1259


Viscosity @ 25°C,   Brookfield




10,000 max.


ASTM D1545


Particle Size, Coulter   Volume Mean




0.4 – 1.5





Typical Properties








Test Method/Standard


Density @ 25°C










ASTM D1475






6 – 9












Organic Co-solvent












Opaque white liquid






General Information

EPIKOTE Resin 3547-WY-57A is most commonly used as a film former for fiber sizing applications for reinforcement of thermoplastics.  In this application, EPIKOTE Resin 3547-WY-57A performs similar to EPIKOTE Resin 3540-WY-55A and provides a balance of glass fiber processing properties and good discoloration resistance at temperatures at which engineering thermoplastics are typically processed.


Upon evaporation of water, EPIKOTE Resin 3547-WY-57A coalesces to form a clear, continuous, non-tacky film at temperatures slightly above ambient.  In heat cure applications in combination with a suitable crosslinking agent, EPIKOTE Resin 3547-WY-57A will form a crosslinked, tough and chemical resistant film.


EPIKOTE Resin 3547-WY-57A can be used in cured applications such as binders and coatings by reacting the epoxide functional groups.  Water dispersed or water soluble curing agents which react with epoxide groups or promote epoxy self-polymerization can be used as crosslinking agents for EPIKOTE Resin 3547-WY-57A.  Such curing agents include dicyandiamide, polyamides, and aliphatic amines.  EPIKOTE Resin 3547-WY-57A can also be cured via the hydroxyl functionality with resole resins and similar materials.


Safety, Storage & Handling

Please refer to the SDS for the most current Safety and Handling information.


Please refer to the Hexion Inc. web site for Shelf Life and recommended Storage information.


For ease of handling and optimum shelf life, EPIKOTE Resin 3547-WY-57A should be stored between 50°F (10°C) and 78°F (25°C), although storage for short periods of time at temperatures up to 100°F (38°C) is acceptable.  Do not allow the product to freeze.  To prevent skinning or surface drying, do not leave the product uncovered for extended periods of time.  If the need arises to store partially filled drums, replace the plastic top sheet onto the surface of the liquid product.  With extended storage or shipping, some settling may occur.  In general, material should be lightly and thoroughly agitated before use to ensure uniformity. 


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 Safety Data Sheet (SDS) 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 Inc") products should be directed to your Hexion sales representative, or the nearest Hexion sales office.  Information and Safety Data Sheets on non-Hexion products should be obtained from the respective manufacturer.



Available in drum quantities.


Contact Information

For product prices, availability, or order placement, visit the “Contact Us” section of our website.  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.

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