New Flame-retardant Structural Adhesive for Aircraft Interior Fabrication

Posted on 1/16/2019 8:36:48 AM By ASC

The aviation industry relies heavily on lightweight design and optimum structural strength. Delo has developed a new, two-component epoxy resin for lightweight structural joints, focusing on fast build-up of strength.

The company reports that the adhesive cures at room temperature, but has been optimized for temperature-accelerated curing. At a temperature of 60°C, a curing time of 15 minutes is sufficient to achieve functional strength (>= 10 MPa). 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.

Additionally, Delo says that its Automix dispensing system allows the adhesive to be processed just like a one-component product, with its thixotropic properties ensuring excellent flow behavior. When the shear stress stops at the end of the dispensing process, viscosity will increase again, preventing the adhesive from flowing out.

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