GMNA 9985599 PDF

Material Description. This specification details the physical properties and performance requirements of a one-component, heat curing (induction or oven), thermosetting, epoxy based, structural adhesive paste, modified to reach sufficient handling strength (metal distortion) in a normal induction cure cycle.

The adhesive shall be capable of being metered mixed and dispensed with current production equipment. It shall be compatible with production systems, including paint, and cannot be adversely affected by paint oven temperatures reaching 200 °C.

Symbols. Not applicable.

Applicability. The adhesive is commonly used in a hem joint configuration to bond steel body components such as inner/outer body panels on doors, hoods, deck lids and other components.

Remarks. The adhesive can be cured in the E-coat bake oven with or without a prior single 4 s induction cure cycle in a normal, hairpin coil, run at 3 kHz. Other induction cure coil designs may necessitate longer dwell times for the cure cycle. Provisions should be made in the fabrication process to monitor hem flange temperatures during induction heating to ensure that the level of required cure is met.