Self-Study Program

62
In addition to the material description, all of
the affected parts in the drawing contain the
following note in the text field in the material
column:
“Electrical insulating properties”.
Rubber and plastic parts
With rubber and plastic parts (particularly
EPDM and chloroprene) and with adhesives
the electrical conductivity and therefore the
risk of contact corrosion is caused by the
presence of carbon black filler.
For this reason it is vital that all elastomers,
plastic parts and adhesives (raw body shell
bonding, fine seam sealing and glass
adhesives) have a specific volume resistance,
and they must not be electrically conducting.
SSP239_086
Door sealing
Body-
fine sealing
Body adhesive bondingWindscreen adhesive
bonding
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