General Information
Bonded Joints, Detaching
Body bonded joints can be detached by applying heat. The adhesives used in the vehicle construction and the repair are destroyed at temperatures 180 - 200°C (356 - 392 °F).
Wear protective gloves and eyewear.
Avoid direct contact of the adhesives with the skin.
Avoid inhaling solvent vapors.
Only process adhesives in well-ventilated areas.
Always note the hazard information from the manufacturer.
Also note the accident prevention regulations applicable in the respective country.
Note the corresponding safety data sheets for the adhesive.
Do not smoke, eat or drink at the work station.
Use suitable extraction.
- The vehicle, parts and adhesive materials must be at processing temperature (acclimated). The processing temperature must be kept for 30 min before work on the adhesive surfaces starts.
- The adhesive surfaces must be free of oils, adhesive residue, humidity, paint and oxide coatings.
- Body structural adhesive must only be used on bare metal components.
- Only use sanding material based on silicon carbide (SIC) for grinding down the adhesive surface.
- Pay attention that the cleaned surfaces are only touched with clean gloves in order to avoid transferring hand sweat or contamination to the adhesive surface.
- Merging must happen immediately after applying the adhesive, in order to ensure a high-quality and secure bonding. Otherwise the adhesive bead must be removed and the surface treatment and application of the adhesive must be repeated.
- Carefully prime the accessible adhesion areas after hardening and seal them with body sealant. Protect adhesion areas in cavities against corrosion using cavity sealant.
Use the adhesive material within the processing time. Within this timeframe the adhesive material must be applied and connected to the body component. Any resistance weld spots or mechanical joining processes (for example rivets and bolts) in the area of the adhesive must be performed within this timeframe.
Do not stress bonded parts until hardened.
During colder seasons, over night or in countries with a cold climate, suitable measures must be taken to reach the minimum hardening temperature.
- Optimize the controls of the heating system, for example deactivate reducing temperatures at night.
- Keep doors and windows closed, and prevent drafts.
- Install auxiliary heaters in the area of the body repair.
- In addition to these guidelines, mind the respective procedure descriptions for body repairs!