Huntsman Introduces Three New Benzoxazines and a High-Temperature Epoxy Adhesive for Composites Fabrication


New Products Offer Out-of-autoclave Curing and Yield High Modulus Parts with Excellent Hot-Wet Strength

THE WOODLANDS, Texas, Oct. 13, 2014 – Huntsman Advanced Materials Americas LLC announced the addition of three new products to its comprehensive line of benzoxazine resins along with a new high-temperature epoxy adhesive at CAMX in Orlando, October 13-16, 2014.& Developed using Huntsman’s 25 years of experience in benzoxazine chemistries, the new resins exhibit viscosity and out-of-autoclave curing profiles that provide for faster, easier processing to increase fabricating productivity. The new products offer high modulus, excellent chemical and corrosion resistance and the ability to perform at elevated temperatures and under humid conditions over extended periods. Huntsman’s new epoxy adhesive combines 400°F (204°C) performance with high lap shear and compressive strengths for liquid shim applications.

According to Carl Holt, Huntsman Advanced Materials Marketing Manager - Aerospace Components & Adhesives, Automotive & Industrial Composites, “Huntsman has seen the applications for our high-performance benzoxazine resins grow significantly in recent years. As a result, by January 2015, we will expand our manufacturing capabilities to meet customer demand.” Among the diverse applications for benzoxazine resins are: high strength-to-weight ratio prepregs for aerospace and tooling applications; high-temperature, chemical resistant automotive under-the-hood components and durable body panels; high-performance composite vessels, parts and prepregs for use in the oil and gas as well as other applications; and halogen-free laminates for printed wiring boards.

New products being featured by Huntsman at CAMX include:

XU 35500 Benzoxazine is a reactive diluent designed to reduce the viscosity of benzoxazines and other resin formulations to facilitate improved handling and out-of-autoclave processing. The diluent also reduces surface tension and improves wettability of resin systems resulting in higher quality composite parts. The XU 35500 benzoxazine diluent is produced from a natural resource known as cardanol, a liquid derived from cashew nut shells.

XU 35610 Benzoxazine Resin is a bisphenol-A based thermoset system that produces dimensionally stable, virtually void-free composites. XU 35610 benzoxazine resin has a glass transition temperature (Tg) of 320°F (160°C). The high modulus material is stiffer than epoxy resins with a flexural and tensile moduli >5,000 MPa. This resin has excellent electrical properties, good hot/wet properties and lower water absorption.

XU 35910 Benzoxazine is a formulated thiodiphenol-based resin which produces a high flexural modulus (4,500 MPa) and high Tg. XU 35910 resin is specially designed for lower temperature curing. It is ideal for fabricating durable, flame-resistant laminates with good hot/wet performance. This product is easy to process with a viscosity of 100 – 500 cP at 230°F (110°C).

Epibond® 300 A/B Epoxy Adhesive* is a high-strength liquid shim adhesive for aerospace and industrial applications that utilize metals, composites and dissimilar substrates. The adhesive attains handling strength in less than four hours at room temperature, eliminating the need for time consuming oven or autoclave curing. Epibond® 300 A/B epoxy resin has a service temperature of 400°F (204°C); it maintains high shear and compression strengths even after environmental aging (see Table 1).

For more information about Huntsman Advanced Materials’ XU 35500, XU 35610 and XU 35910 benzoxazine resins as well as Epibond® 300 A/B high-temperature epoxy adhesive, contact us at: Or visit our website:

* Does not intentionally contain any Substances of Very High Concern (SVHC) for authorization as published by the European Chemicals Agency (ECHA) pursuant to Article 59 REACH as of December 19, 2012.


Epibond® is a registered trademark of Huntsman Corporation or an affiliate thereof in one or more, but not all, countries.

About Huntsman:

Huntsman Corporation is a publicly traded global manufacturer and marketer of differentiated chemicals with 2013 revenues of approximately $13 billion including the acquisition of Rockwood’s performance additives and TiO2 businesses. Our chemical products number in the thousands and are sold worldwide to manufacturers serving a broad and diverse range of consumer and industrial end markets. We operate more than 100 manufacturing and R&D facilities in more than 30 countries and employ approximately 15,000 associates within our 5 distinct business divisions. For more information about Huntsman, please visit the company's website at

Forward Looking Statements:

Statements in this release that are not historical are forward-looking statements. These statements are based on management’s current beliefs and expectations. The forward-looking statements in this release are subject to uncertainty and changes in circumstances and involve risks and uncertainties that may affect the company’s operations, markets, products, services, prices and other factors as discussed in the Huntsman companies’ filings with the U.S. Securities and Exchange Commission. Significant risks and uncertainties may relate to, but are not limited to, financial, economic, competitive, environmental, political, legal, regulatory and technological factors. In addition, the completion of any transactions described in this release is subject to a number of uncertainties and closing will be subject to approvals and other customary conditions. Accordingly, there can be no assurance that such transactions will be completed or that the company’s expectations will be realized. The company assumes no obligation to provide revisions to any forward-looking statements should circumstances change, except as otherwise required by applicable laws.

Table 1. Epibond® 300 A/B Typical Cured Properties


Properties Test Temperature Values
Lap Shear Strength, MPa 77°F (25°C) 28.9
Lap Shear Strength, MPa 250°F (121°C) after 7 days at 160°F (71°C) and 85% RH 17.2
T-Peel Strength, N/mm 77°F (25°C) 2.66
Compressive Strength, MPa 77°F (25°C) 75.8
Compressive Strength, MPa 250°F (121°C) 62.0
Compressive Strength, MPa 250°F (121°C) after 7 days at 160°F (71°C) and 85% R/H 57.2


Dawn Adair, Marketing Communications
+1 281 719 4490