C70 Coupe L5-2.3L Turbo VIN 53 B5234T3 (2001)
Correct adjustment of the paint sprayer is important when painting with base solid paints.
Use nozzle 1.3-1.5 and spray pressure of 300-500 kPa (43-73 psi)).
The wrong nozzle combination can make it impossible to achieve the correct color tone.
Bad dispersion because of the incorrect nozzle leads to large drops and too "wet" (dark) spraying.
Too thick a coat leads to patchiness.
Metallic
General about metallic
It is always difficult getting a good color match when repainting metallic colors. In general it is easier to obtain matches with dark colors than with light
colors.
Color match is most affected by how the base metal paint is applied, that is the spray technique used. This affects the coat thickness and flow.
The drying time between the coats also has importance color match.
An incorrect color can, therefore, be obtained despite careful preparations. This usually results in too dark or too light a coat.
(Dark) patchy coat (so called "wet coat") is due to too little aluminum in the surface. This is adjusted with a "drier" second coat.
Light coat (so called"dry coat") is due to too much aluminum in the surface and gives a gray tone to the surface. This is adjusted with a "wetter" second
coat.
"Wet spraying" is obtained when:
-
color flow is increased
-
air supply is reduced
-
spraying distance is reduced
-
the second coat is applied thicker
Corrective action to obtain a "dry spraying" are the opposite of "wet spraying". When there are difficulties in achieving a drier spray it may be necessary
to lower the spray viscosity of the base metallic paint for a few seconds. Occasionally "faster" thinning is necessary.
Volvos metallic paint is a two coat type. It consists of a base metallic coat underneath with a two part varnish on top. This system gives good finish and
color durability.
For specific working data see.
Stir base metallic paint
