General Note On Use Of 2-Component Acoustic Filler Foam Following Repairs - Ah60.00-P-0033-01RQ

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Model 117, 163, 164, 166, 167, 168, 169, 171, 172, 176, 177, 203, 204, 205, 206, 207, 208, 209, 211, 212, 213, 215, 216, 218, 219, 220, 221, 222, 223, 230, 231, 240, 242, 245, 246, 251, 253, 257, 290, 292

Model 190, 197

The 2-component acoustic padding foam is only to be used if the installed standard foam parts are so badly damaged that they cannot be used again.

After finishing repair, the acoustic padding foam serves for sealing and soundproofing in special vehicle hollow cavities (e.g. vehicle floor, longitudinal members).

Use of this acoustic padding foam enables the sealing and soundproofing to correspond to that of series production. The acoustic padding foam has been tested and approved, and it can be introduced through the given holes (openings).

The following preconditions must be guaranteed when using filling foam:

The surface must be protected against corrosion, i.e. with a cathodic immersion paint finish or paintwork structure.
The surface must be clean, free from grease, oil, mold release agent and other substances which impair the adhesion of foam to the surface. Exception: In the area of points which are not protected against corrosion (e.g. weld seam) a partial preservation before introducing the foam is required.
Additional cavity preservation with wax is possible after an hour.
Subsequent operations in the area of the foam-protected cavities which produce an increased thermal load (e.g. welding) are not permissible.
The functionality of the cavity or the vehicle after foaming must still be guaranteed. In addition the foam-protected area must be investigated for distinguishing marks.
The 2-component acoustic padding foam may leak out after introduction and subsequent curing (expansion 100 to 200 %). Leaking at visible areas is to be prevented with the aid of suitable measures (e.g. masking off breakthroughs).