How much paint do you need to paint a car? The choice of paint, painting technology

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

In order to calculate how much paint is needed to paint a car, one should take into account the physical properties of the dyeing solution (temperature, viscosity, stratification), as well as the state of the painted surface. To achieve the lowest paint consumption and high quality of the work performed, car parts should be carefully sanded. When painting vehicles made of finely porous materials, you can achieve a minimum consumption of coloring agents.

Car body painting

You can achieve high savings by choosing colors that are similar to the color of the car before it was repainted. A complete repaint of a car will require more coats of paint than a simple tint change. If you want to restore the color of only the damaged part, it will be much cheaper than a complete repaint of the car.

Also worth remembering: how much paint you need to paint a car depends on the method of work and the brand of spray gun used. Worth paying attentionthat part of the paint remains on the walls of the spray gun tank. Alkyd enamel typically takes 35-55% more than acrylic car paint on the same surface. The amount of paint used depends on the size of the car. A full body painting takes from 2.5 to 3 liters of liquid.

The main parameter of car paint consumption is viscosity. An improperly diluted composition will not only increase the consumption of paint, but can even ruin it. Too liquid paint will not set well and spread in drops over the body, and thick paint will cause an orange peel effect on metal parts. In both cases, you will have to sand and repaint. Especially to avoid such errors, there is a tool - a viscometer. If this device is not available, you can use the marked container and ruler.

The methods of operation of the viscometer are based on determining the desired viscosity by the time during which the liquid is poured into the tub through a special hole (it is convenient to consider the time with a stopwatch). Another option is to pour paint into the container and measure the exact amount of liquid filled with a ruler, so we can find out the required amount of solvent. To find out the exact proportion, you need to look at the can of paint, the ratio of paint and thinner is indicated in the method of application.

How much does it cost to paint a car

The temperature of the room and paint affects the final result. If the temperature in the painting room is low, after drying on the machine body, there may bethere are tears from the hardened paint.

A solution with too much coloring enamel will be very thin. The hardener is allowed to be used at a temperature of 20 - 23 °C.

As mentioned earlier, to paint an ordinary car, on average, you need to spend 2.5 - 3 liters of paint. The larger the car, the greater the consumption, so an accurate calculation of the amount of product must be made per 1 square meter of the vehicle. If you do not know how much paint you need to paint a car, you should calculate using the formula N=¼/1 m2.

Where:

• N - the amount of paint needed in liters;
• 1/4 is the required amount (from a liter) at 1 m2;
• 1 m2 - car body to be painted.

Paint consumption when painting a car: car hood - 0.5 l, bumpers - 0.25-0.30 l, roof - 0.4 l, trunk - 0.3-0.4 l, radiator grille - 0.1 l, rear and front fenders - 0.5 l, thresholds - 0.15 l, car doors - 0.3 l.

Spray paint

When repainting parts from one color to another, the consumption of paintwork materials increases by 0.5 times compared to the usual volume spent.

There are also paint and varnish solutions in aerosol cans, in such a container you do not need to select the proportion, since it is already ready. However, it is worth noting that the surface to be painted must be sanded with high quality, and also covered with a special primer solution, in no case with concrete contact! Himtoo large sand particles, and after painting they will be visible.

A typical can of paint contains from 0.2 liters of liquid. On a well-primed surface, one can should be enough for 0.25 - 0.50 m², the amount of surface to be coated depends on the porosity of the metal and color. To paint 1 m² in a color similar to the previous one, it will take 2 cans of paint. When repainting the body color, a minimum of 4 cans per 1 m2 will go away^{2. From the price of paint for the entire body of a car, we find out how much it costs to paint a car.}

Preparing the body for painting

Before starting all work, it is worth washing the car, and not just pour water on it, but wash it with detergents, this will help remove traces of dirt and grease from the surface. The next part will be the dismantling of all plastic parts on the body of the car, as well as headlights and optics.

Next, you need to do the following:

• we clean all the bumps and roughness of the body;
• we build up to the factory size dents and potholes with automotive putty;
• twist all the details so that they are in the position in which they were when buying a car.

Read more about grouting damaged paintwork

Before grouting, you need to place the car under the light and inspect the body parts. Mark all scratches, cracks and potholes with a marker.

Now that we have installed all the bumps that are on the body,we take sandpaper 60-100 and a chisel 5 mm. We carefully rub the defect down to the metal. We try not to increase the area of the rubbed surface, the smaller it is, the easier it will be to fix it and bring it to the general color. The periphery zone between the whole part of the car and the defect should be invisible, without scratches, waves and delaminations. How much paint is needed to paint a car depends on the quality of the prepared surface.

Before painting, it is necessary to clean, wipe off all the dust both from the car and from under it, otherwise the dust will settle when applying the paintwork solution.

Getting rid of defects with autofiller

After stripping the car, you can start applying the putty layer. For the machine, it is best to use synthetic and polyester blends. The spatula is recommended to be used with a rubber blade - this will prevent the appearance of new scratches during operation. Particularly large dents should be covered with finishing putties, they are easy to work with and they quickly harden.

After the entire putty area has hardened, we proceed to grouting. Putty should be rubbed with coarse sandpaper 120-600. When the surface has a beautiful smooth appearance, it must be wiped, then a primer can be applied to further paint the car body.