Vauxhall Workshop Service and Repair Manuals

Step 12 - Underbody Protective Wax  

The underbody of all vehicles is treated underbody protective wax in the subsequent production procedure.  

The entire vehicle underbody and its attaching parts are coated, including:  

•  Fuel tank  

•  Wheel wells with coil springs and shock absorbers  

•  Axle body  

The catalytic converter and parts of the exhaust system are not coated.  

Advantages of underbody protective wax:     •  High solids content.   •  Low solvents content.   •  Environmentally friendly.   •  Optimal adhesion.   •  Smooth, clean wax layer once hardened.   •  Insulation and moisture barrier due to the water-repelling properties.     The underbody protective wax is applied in an automatic spraying procedure.