Ford Galaxy / Ford S-MAX. Manual — part 1075

Failure to intermediate sand.
Condensation formed because of temperature fluctuations.
Unprofessional preparation (especially on plastics).
Overheated CDP/intermediate filler.

Repair of damage:

Sand out the damage and recreate the paint finish. Create the paint finish strictly in
accordance with the general technical information.

Adhesion defects in clear lacquer.

Clear lacquer detched from base paint.

Cause/damage pattern:

Base paint layer too thick.
Intermediate and final flash-off times of base paint too long.
Incorrect mixture ratio clear lacquer/hardner.

Repair of damage:

Refinish sanding and recreate the paint finish.

Sanding scores

Single or wide area clusters of scoring or sanding marks, often with raised edges.
Noticeable on metallic paints as light-dark stripes.

Cause/damage pattern:

Stopper sanded too coarsely.
Filler sanded too coarsely.
Filler not thoroughly dried bfore sanding.
Old paint sanded too coarsely.
Soft elastic substrates, e.g. TPA base, treated with thinners which was too aggressive
and therefore etched.
Top coat applied too thinly.

Repair of damage:

If the damage pattern is minimal, after the top coat has dried fine sand the paint surface
and refurbish by polishing.
If the damage is great or on metallic paints, sand the paint surface or substrates and if
necessary remove them, then cover the bare metal and re-paint.

Formation of stripes

Differing, stripe shaped color/effect formations in dark/light areas of a metallic paint finish.

Cause/damage pattern:

Spray gun (nozzle) not perfect.
Incorrect spray pressure.
Thinners not suitable.
Incorrect spray viscosity.
Flash-off time too short.
Unsuitable working temperature.

Repair of damage:

Apply base paint evenly.
Repair spray gun.
After clear lacquer has thoroughly dried, sand surface and paint again.

Peeling/blistering on plastic parts

Paint adhesion insufficient between top coat and filler and/or primer layer. It often happens
that the whole of the paint finish detaches from the plastic.

Cause/damage pattern:

Plastic item not cleaned sufficiently, not or inadequately tempered.
Unsuitable cleaning agent used.
Unsuitable materials used.
Moisture.
Paint finish underbaked or overbaked.

Poor or lack of intermediate sanding.

Repair of damage:

Sand away faulty paint coats and re-apply paint finish.
In extreme cases use a new part.

Blistering on polyester material

Color shade differences or marks in paintwork subsequently applied to previously unpainted
plastic material.

Cause/damage pattern:

Plastic material is not suitable for painting.
Incorrect bonding agent.
Paint used not solvent resistant.

Repair of damage:

Repaint using suitable materials.
Install unpainted new part (after consulting customer).

Peroxide marks in metallic paints

After longer period of drying, abnormal marks where the color shade varies.

Cause/damage pattern:

Too much hardener added to polyester stopper (over 3% can cause this damage
pattern).
Polyester stopper not well enough mixed.

Repair of damage:

Sand, fill with polyester or epoxide filler and re-paint.

Crack formation

Cracks of different lengths and depths running in all directions.

Cause/damage pattern:

Layers too thick.
Painted several times.
Temperature fluctuations.
Mechanical effects e.g. distortions.
Substrate not thoroughly hardened.
Old paint not completely dried out.
No or insufficient hardener added.
2-component materials used on nitro or TPA.

Repair of damage:

Sand away layers until sound substrate is reached and create new paint finish (prime, fill,
apply topcoat).

Shrinking back/zone edge marks

Lifting or dropping in of edge zones (edges which accentuate themselves in the top coat),
flow problems and loss of shine in top coat.

Cause/damage pattern:

Old paintwork not rubbed down to a seamless transition.
Stopper and filler on a viscoplastic base primer.
Filler sanded and overpainted when not thoroughly hard.
Previous materials overworked too early, substrate not sufficiently hardened.
Primer applied in layers which were too thick, and not dried for long enough.
Sanding paper too coarse.
Top coat thinned too much.

Repair of damage:

After hardening off the top coat, fine sand the surface and polish up, apply filler if
necessary and paint once more.