How to properly paint a car: step-by-step instructions for home painting

Anna Tkach

AutoPortal editorial team

141 views 3 min read

Painting a car is a labor-intensive process, but it is doable at home with proper preparation and adherence to technology. In this material, we will break down how to paint a car in a cold garage, outside, or at home, using a spray can or a paint gun, and which steps cannot be skipped to achieve a quality result.

Car body painting is a task that requires patience and attention to detail, but with a competent approach, it is quite possible to do it yourself. In this review, we will tell you how to paint a car in an unheated garage, outdoors, or indoors, using an aerosol can or a spray gun, and also list the key steps without which achieving an even layer will not work.

1. Preparatory work before painting

A quality result directly depends on how thoroughly the surface is prepared. Before starting work, it is necessary to:

Thoroughly wash the body, remove dust, grease stains, and other contaminants.
Remove the damaged paint layer and traces of corrosion using sandpaper or a sander.
Level out dents and unevenness of the body using putty.
Before priming, be sure to clean and degrease the prepared area.

At this stage, accuracy is especially important: a properly cleaned and leveled body is the key to the paint laying evenly.

2. Priming the surface

When the body is cleaned and leveled, we proceed to applying primer:

The primer is selected depending on the type of paint — acrylic or epoxy.
The compound is applied in two to three layers, each of which must dry before applying the next.
Before final painting, the primed surface should be sanded with fine-grit sandpaper.

Primer ensures reliable adhesion of paint to metal and protects it from corrosion.

3. Choosing the paint material

The type of paint determines the final appearance of the coating and the method of its application:

Aerosol can — optimal for spot repairs and small areas.
Metallic — requires special precision and even spraying, especially in a cold garage.
Spray gun — suitable for a full repaint of the car.

When working with metallic, it is important to remember the direction of light and avoid runs.

4. The paint application process

The spraying technology depends on the location of the work:

In the garage: it is necessary to ensure ventilation, a temperature of about 20°C, and also use a respirator and gloves.
Outdoors: it is better to choose a clear day without wind, otherwise dust will settle on the fresh coating.
Apply paint with smooth movements, overlapping the previous layer by 50-70%.
The distance from the can or gun to the body should be consistent — about 20-30 cm.

It is better to apply several thin layers than one thick one — this way the coating will be even, without runs.

5. Drying and polishing

After finishing the painting, we proceed as follows:

Each layer needs to dry for as long as specified in the material's instructions.
When the paint is completely dry, you can apply clear coat — it will protect the coating and add shine.
For metallics, clear coat is mandatory: it levels the surface and enhances the depth of the shade.
After drying, you can polish the body yourself using a soft cloth or a polishing machine.

Properly conducted drying and polishing determine the durability of the coating.

6. Useful recommendations

When working in cold weather, use heaters or lamps so that the paint dries evenly.
For local repairs, it is better to work outdoors or in a garage with open doors — this will prevent condensation.
Be sure to use a respirator and gloves: paint is toxic.
To make the painting successful, do not rush: haste leads to runs and an uneven layer.