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How to paint a whole car

How to paint a whole car with a peeling clear coat and oxidized base coat. All stages step by step.

Clear coat and base coat on this vehicle are badly damaged

The roof is a real nightmare

Sand the damaged paint areas with an 80 grit sanding disc in order to obtain a perfectly smooth surface

It is strongly recommended to wear a mask respirator for sanding and painting

Using an orbital sander will save you time

Remove the vehicle badges

You can re-glue them with windshield glue or double-sided tape used to fix door side protectors

The sanded surface must be perfectly smooth

Rinse the vehicle

Degrease the body with dishwashing liquid

Remove the rear-view mirrors Protect vehicle wheels, headlights, door side protectors and windows

Wet the floor around the car to prevent dust

You should not feel any roughness when you slide your finger on the bodywork

Use a filler primer + hardener to prepare the bodywork

The filler primer has a high covering power and allows to increase the adhesion of the paint

The mixing ratio is indicated on the supplier's data sheet

A 4:1 ratio + 10% to 30% of thinner

The mixing ratio is also listed on the paint pot

Mix the paint in a mixing cup

On the 4:1 column, A indicates the level of the paint

B indicates the hardener level

10% and 20% indicate the level of thinner

Shake the pot to mix everything

Use a good quality spray gun to apply the primer The spray gun has 3 settings: the amount of air, the volume of paint output and the pattern of the jet

Adjust the gun by spraying the paint onto a carton

Increase the pressure on the compressor if necessary as the primer is very thick

Apply 2 to 3 coats of primer to the sanded areas

Keep the distance of 20 to 30 cm between gun and spraying area

Avoid painting on windy days, under hot sun or in wet weather

Clean the gun with thinner

Dismantle the gun and clean the filter and nozzle

Let the primer dry for 2 to 3 hours then sand the entire body with 350 grit sanding disc

Sanding will smooth the primer as well as the old paint

Rinse the vehicle and degrease the body with dishwashing liquid The vehicle is ready for painting

The paint used is a two coats paint (one coat of base coat, one coat of clear coat)

In reality, 2 to 3 coats of base coat and 2 to 3 coats of clear coat are required

Dilute the base coat to 70%

For 300 ml of base coat, add 300 * 0.7 = 210 ml of thinner

Spray the paint begining with the surfaces covered by the primer

Do not turn the wrist: grip the gun keeping perpendicular with the spraying area

Release the trigger at the ends of the trajectories to avoid applying too much paint at the ends

Then apply 2 to 3 coats of base coat over the entire body

Just wait for the base coat to dry to the touch to apply the next coat

The base coat dries quickly: about 10 minutes between coats The clear coat used is a two-component clear coat (clear coat + hardener)

2:1 ratio + 10% thinner

Spray the clear coat to the whole vehicle

Do not apply too thick layers to avoid sagging

Move the gun regularly without lingering over an area to avoid sagging

On the curves, round the trajectory keeping a distance of 20 to 30 cm from the body

If you make a sag, it is possible to erase it after drying the varnish (after 12 hours)

To clear a stain of clear coat, the clear coat should be wetted and the sanding should be done by hand with 320 grit sandpaper followed by 600 (always wet)

It is then sufficient to spray clear coat to the sanded area and the sagging will have disappeared