Repair Instructions For Underbody And Stone Chip Protection

NOTE:

The underbody and stone chip protection structure must be restored back to its original layer strength and appearance during a repair.

Water drain holes must stay clear.

All threaded pins and weld nuts with M-threads, as well as all other pins and contact surfaces for the assembly must be functional after the sealant application.

Damage caused by an Accident (Part Replacement)

-- Clean the new part with Silicone Remover, Long.

-- Sand the factory primer (sanding pad).

-- Clean again using Silicone Remover, Long.

-- Apply Two-Part Wash Primer:LHV 043 000 A2 to sanded through areas.

-- Dry (pay attention to the drying time).

-- Then fill with Two-Part HS Performance Filler.

-- Dry (pay attention to the drying time).

-- Dry-sand the filler with sandpaper (P400-P500), making sure not to sand through.

-- Clean the surface with Silicone Remover, Long.

-- Apply a suitable Stone Chip Protection. Refer to STONE CHIP PROTECTION .

-- Dry (pay attention to the drying time).

-- If necessary, smoothen the texture.

-- Clean the base surface with Silicone Remover, Water-Based.

-- Apply the paint structure with top, base and clear coats.

Damage Caused by an Accident (Repair)

-- Always clean damaged components/surfaces.

-- Remove the underbody protection using the Pneumatic Brush Grinder Set:VAS 6446A .

-- Remove the damaged area and sand down to the bare metal.

-- Remove any existing corrosion using the Pneumatic Brush Grinder Set:VAS 6446A ; while doing so, finely sand the overlapping areas.

-- Clean the base surface with Silicone Remover, Long.

-- Apply Two-Part Wash Primer:LHV 043 000 A2

-- Dry (pay attention to the drying time).

-- Then fill with Two-Part HS Performance Filler.

-- Dry (pay attention to the drying time).

-- Sand the filler.

-- Clean the base surface with Silicone Remover, Long.

-- Apply suitable filling paste.

-- Sand the filling paste with sandpaper (P80-P240) while liberally sanding the transition areas.

-- Clean the base surface with Silicone Remover, Long.

-- Apply Two-Part Wash Primer.

-- Then fill with Two-Part HS Performance Filler.

-- Dry (pay attention to the drying time).

-- Dry-sand the filler in the stone chip protection area with sandpaper (P400-P500), making sure not to sand through.

-- Clean the surface with Silicone Remover, Long.

-- Apply a suitable Stone Chip Protection. Refer to STONE CHIP PROTECTION .

-- Dry (pay attention to the drying time).

-- If necessary, smoothen the texture.

-- Sand the complete filler surface with sand paper (P400-P500).

-- Clean the base surface with Silicone Remover, Water-Based.

-- Prepare the paint structure with top, base and clear coats.

Cracks in the Stone Chip Protection

NOTE:

Repairs should be performed according to description "damage caused by an accident (repair)".

Damage Caused by Stone Impact (Gravel, Grit, etc.)

-- Clean the damaged areas thoroughly.

-- Sand the damaged surfaces with sandpaper. If damage is deep, dry-sand with P120-P240 sandpaper.

-- Clean the base surface with Silicone Remover, Long.

-- Apply Two-Part Wash Primer:LHV 043 000 A2 to sanded through areas.

-- Dry (pay attention to the drying time).

-- Then fill with Two-Part HS Performance Filler.

-- Dry (pay attention to the drying time).

-- Dry-sand the filler with sandpaper (P400-P500), making sure not to sand through.

-- Clean the base surface with Silicone Remover, Long.

-- Apply a suitable Stone Chip Protection (refer to STONE CHIP PROTECTION ) on the damaged areas. If damage is extensive, refinish the entire surface.

-- Dry (pay attention to the drying time).

-- If necessary, smoothen the texture.

-- Clean the surface with Silicone Remover, Water-Based.

-- Apply the paint structure with top, base and clear coats.