Metal Panel Bonding
| Metal Panel Bonding |
This section is intended to give general guidelines for the adhesive bonding of outer panels as an alternative to MIG welding. Panel bonding may be seen as an alternative to MIG welding as it makes possible the replacement of whole panels during repairs of collision damage. The benefits of panel bonding are:
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No heat or burn damage when additional welding is not required
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Corrosion protection
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Can act as a sealant
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Improved process for complicated shapes (wheelhouse area)
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The General Motors specification for metal bonding adhesives is GM 6449G. The scope of this specification is intended to provide the performance guidelines of structural adhesive systems used to repair (metallic) automotive bodies in the aftermarket. These types of adhesives are intended for use when bonding replacement body panels as an option to welding as the attachment means. GM information outlines the use of room temperature cure acrylic adhesives that contain glass bead technology.
Bonding procedures in general are applicable only to a factory seams type approach.
Sectioning or partial paneling of full panels is not supported by General Motors unless specifically documented in a Service Bulletin or Manual.
Applicable components for this technology are EXTERIOR PANELS ONLY, including door skins, tail panels, roof outer panels and quarter panels.
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Do not use adhesive bonding for the repair of the car's subframes or such upper body components as structural rails, strut supports, floor panels, upper fender rails, side pillars, rear or front door opening frames and rocker panels unless specifically specified in a service bulletin or a GM manual. If in doubt, use only the procedures referenced in the Service Manual for the specific vehicle being repaired. |
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Always follow the system manufacturer's instructions for application, handling, and curing. |
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Adhesives currently meeting the performance requirements include General Motors materials and products manufactured by Lord Adhesives. At this time, ONLY the adhesive products listed below meet this guideline:
| Manufacturer and Part Number | Description |
| GM P/N 12378566 (US) | Fast Set Panel Bonding Adhesive |
| GM P/N 88901674 (Canada) | |
| Lord Fusor P/N 110B/111B | |
| GM P/N 12378567 (US) | Medium Set Panel Bonding Adhesive |
| GM P/N 88901675 (Canada) | |
| Lord Fusor P/N 108B/109B | |
| 3M P/N 8116 | Panel Bonding Adhesive |
| Ashland Plio Grip Panel 60 | Panel Bonding Adhesive |
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