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Technical Data Sheet




Most recent revision date:          April 2009



HELOXY™ Modifier BD




Product Description


HELOXYTM Modifier BD is a diglycidyl ether of 1,4-butanediol.

The modifier is primarily used as a reactive diluent or viscosity reducer for liquid epoxy resins.



Application Areas/Suggested Uses


HELOXYTM Modifier BD is a reactive diluent for a variety of uses for solvent-free coatings based on epoxy resins. Its main fields of application are formulated, low-viscous epoxy resins with good leveling, surfaces and wetting properties, used for civil engineering, paints and adhesives.      


HELOXYTM Modifier BD is added to the epoxy resin in a ratio of 5 – 25 %.





  • Reduces viscosity while maintaining most cured state properties
  • Improves wetting characteristics
  • Facilitates air release




Sales Specification





Test Method /


Epoxy number


31.5 – 34.5

DIN 16945

Epoxy equivalent


124 – 137

DIN 16945

Epoxy Value


0.73 – 0.80

DIN 16945

Hydrolyzable chlorine content


0 – 0.30

ISO 21627-2

Viscosity at 25°C


10 – 20

DIN 53015

Refractive Index at 25ºC


1.458 – 1.464

DIN 51423



    0 – 100

ISO 6271








Typical Properties





Test Method /


Delivery form




Density at 20ºC 


1.10 – 1.12

ISO 2811








Safety, Storage & Handling


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


HELOXYTM Modifier BD should be stored at room temperature in conditions such that moisture is excluded, in the original containers kept tightly closed. Under these conditions the shelf life should be a minimum of three years from the date of certification.






® 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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