Notes On Cavity Preservation - Ah97.20-P-0001-01B

Model All 

Model all 

Repair preservation 

After body repairs, the cavities in the processed area must be sprayed with wax. It is also necessary to perform repair preservation when detachable parts (e.g. fender (front), engine hood, doors, trunk lid) are replaced and welding, riveting and soldering work is carried out.

Always apply two coats of repair preservation agent one after another with a flash-off time of 5 min. in between.

After drying, ensure that drain holes are not plugged.

It is important that the wax is applied after the sealing and painting work but before the assembly operations. Otherwise paint damage can occur or installation parts can be soiled with wax.

The crash box clamping area and contact surfaces in the longitudinal member must be free of wax. Preserve these only after assembling.

Preservation agent must be also applied to the replacement bodyshell 2 times in succession after painting.

Replacement bodies supplied ex works with top coat are already treated with the standard cavity preservation.

Application notes 

The application temperature of the wax should not be below 15°C. The cavities should be dry for preservation. Before starting preservation work, check spray pattern of spraying hose or spray can. The wax must spray uniformly from the openings in a circular pattern. Particularly advantageous are nozzles which spray toward the front as well as at an angle toward the rear.

Wax mist in the vehicle interior must be avoided.

The interior can otherwise be damaged.

The spraying hose of the hand-held lance must be "stiff". Spraying hoses that tend to roll up are not suitable.

When preserving, insert the spraying hose into the cavities in all directions as far as possible. Spray while slowly inserting and pulling out the spraying hose.