Saab 3-Sep Automobile User Manual


 
252 Car care
If corrosion has already set in, such as the
result of stone-chip damage, use a pointed
knife to scrape off all surface rust. If possi-
ble, the damaged area should be taken
back to the bare metal. The metal should
then be primed with two thin coats of primer
applied by brush.
After the primer has dried, apply several thin
layers of topcoat until the surface of the
repaired area is flush with the surrounding
paintwork.
Stir both primer and touch-up paint thor-
oughly before use and allow each coat to
dry before applying the next.
Two-coat enamel
As the name implies, two-coat enamel is
applied in two operations. The first coat, the
base color, contains the pigment, metal
flakes and binder. The second coat consists
of a clear enamel, which provides the final
gloss for the paintwork and protects the
base from moisture and environmental con-
taminants.
Touch-up stone-chip damage as follows:
1 Thoroughly clean the damaged area.
2 Then apply the primer, base color and
finally, the clear enamel. To achieve the
best finish, apply two or three coats of
primer.
Surface treatment composition
1 Body panel
2 Zinc (certain components only) 7.5 µm
3 Phosphate coating 3 –5 µm
4 Cathodic ED 23 µm
5 Intermediate coat 35 µm
6 Metallic base/solid base 11 µm
7 Clear enamel 45 µm