Notes on cavity preservation - AH97.20-P-0001-01B

The cavity preservation with wax already performed at the factory completes the corrosion prevention measures.

No repetition of this preservation work is necessary.

Repair preservation 

Following body repairs, spray hollow cavities with wax in the repaired area. When replacing detachable body components, e.g. front fender, engine hood, doors, trunk lid as well as during welding, riveting and soldering work, also perform repair preservation.

As a matter of principle, apply two coats of repair preservation agent one after another with an air drying time of 5 min. in between.

After drying, ensure that drain holes are not plugged.

It is important that the wax is applied following sealing and paintwork, however, before assembly. Otherwise paint damage can occur or installation parts can be soiled with wax.

Crash box clamping area and contact surfaces in longitudinal member must be free of wax. Preserve only after assembling.

Also preserve replacement bodies twice after painting.

Replacement bodyshells top-coated in the factory have already been treated with the standard cavity preservation.

Processing instructions 

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.

Avoid wax fog in vehicle interior to prevent damage to interior equipment.

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 spraying hose.

After preservation work clean spraying nozzle and spraying hose together with sprayer.