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DELO Launches Flame Retardant Structural Epoxy Adhesive for Aircraft Interiors

Published on 2018-12-07. Author : SpecialChem

TAGS:  Epoxy Adhesives    

Demand for commercial aircraft is booming worldwide. The new flame-retardant structural adhesive, DELO-DUOPOX AB8162, makes production faster.

Epoxy Resin for Lightweight Structural Joints

DELO's new epoxy adhesive for lightweight structural joints in aircraft interiors

No other industry relies as heavily on lightweight design as aviation does. On the one hand, optimum strength is crucial, on the other hand, weight must be kept to a minimum. DELO has developed its new, two-component epoxy resin especially for lightweight structural joints in aircraft interiors, focusing on fast build-up of strength.


DELO-DUOPOX AB8162 cures at room temperature, but has been optimized for temperature-accelerated curing. For example, at a temperature of 60 °C, a curing time of only 15 minutes is sufficient to achieve functional strength (>= 10 MPa). Consequently, components can be further processed after this short time, which significantly speeds up production processes.

The adhesive is multi-purpose, including coating or bonding of insert fasteners. With its beige-yellowish color, it has been visually adapted to honeycomb sandwich panels, which are frequently used in the production of aircraft.

DELO-DUOPOX AB8162 ensures consistently high strengths, even under the influence of
both temperature and aging, and features excellent resistance to media such as Skydrol,
for example. This is a hydraulic fluid that is commonly used in aviation. DELO-DUOPOX AB8162
is a CMR-free product (non-carcinogenic / non-mutagenic / non-reprotoxic).

Fulfilling High Fire Protection Requirements

Due to the importance of safety, the materials used in aircraft interiors must fulfill high fire protection requirements. These are met by the flame-retardant DELO-DUOPOX AB8162. This product complies with the requirements of FST tests according to CS/FAR Part 25 §25.853 (a)(1)(ii) and those of the Airbus standard ABD0031.

FST stands for Flame, Smoke, Toxicity. In these tests, a rod-shaped sample of pure adhesive is held over a Bunsen burner flame for 12 seconds. After this time the adhesive must extinguish itself. It is also required to achieve low flue gas density and a low toxicity level.

Source: DELO
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