Adhesives for aircraft interiors have to fulfil several requirements, among these, the requirements for fire protection, along with good aesthetic qualities for a neat and attractive finish. DELO’s new DELO-DUOPOX AB8390 two-part epoxy resin has fulfilled fire protection requirements including those for low flammability, smoke density and toxicity. It tolerates temperatures ranging from -55 °C to +85 °C. In addition, the adhesive is highly resistant to unsightly yellowing, maintaining a pure white color in 1,000-hour tests at a humidity level of 85% and a temperature of +70 °C.
Easy application is made possible through the DELO-AUTOMIX system, which automatically mixes the two components during application. It cures within 30 minutes, but will cure faster if subjected to temperatures of around 60 °C. According to the company the adhesive will be especially suitable for bonding lightweight sandwich panels. It will be suitable for load-bearing connections as well as ditch and pot applications.