How to choose a spray paint for metal?

Aerosol paint is a paint and varnish substance pumped into a metal spray can. The container for paints and varnishes (LKM) is equipped with a special distribution valve - spray. Inside the spray can is paint and gas. When you press the valve, the gas pushes the spray out of the tank. Also inside the can there is a metal ball, which is necessary to bring the coloring composition to a uniform consistency.

Content:

• Benefits and Applications
• Aerosols for metal
• Spray paint tips
• Safety precautions

Benefits and Applications

Advantages of spray paint:

1. Ease of use: No need to buy solvents, brushes or rollers.
2. Reasonable prices.
3. Compactness during storage and transportation.
4. Anticorrosive qualities.
5. Aerosol formulations dry quickly after application to the surface.
6. The uniformity of the applied layer. The layer is much more even than in the case of the brush.
7. The painted surface retains its original appearance for many years.
8. A huge variety of colors and shades.
9. Empty cans can be used for recycling (environmental motivation).
10. Long shelf life.

There are many varieties of paints in spray cans:

• enamel Ral;
• universal compounds;
• aerosol type varnishes;
• enamels;
• primers;
• decorative paints and varnishes;
• protective compounds.

Aerosol coatings are usually used for the following purposes:

1. For painting surfaces of buildings (graffiti). The main consumers are writers.
2. For decorating automobile and motorcycle vehicles (airbrushing). The technique is painted by a specialist whose profession is airbrush.
3. For painting hard-to-reach spots on any surfaces, and also, if desired, speed up painting. In the latter case, everyone uses cans: from amateurs to professionals, since spraying is not so time-consuming when compared with brush or roller.

Advice! When choosing spray paint, it is recommended to give preference to spray cans with a jet direction control. Such a regulator allows you to direct the paint, both horizontally and vertically, which allows you to apply the composition more evenly.

Aerosols for metal

There is a difference between the formulations used for painting metal and wood. The paint intended for application to metal surfaces contains alkyd resin, as well as pigmenting agents, methyl acetate, propane, butanol, butane and xylene. For wood, a more gentle formula with the addition of varnish is used to protect the material.

Varieties of coatings for metal:

1. Temperature compositions. They are characterized by increased resistance to metal heating. LKM of this type are used where surfaces are operated in extreme temperature conditions: motorcycle mufflers, ovens, etc.The painted coating is able to withstand temperatures in the range of 300-750 degrees.
2. Standard compositions. Paint is used for any need because of its versatility (for example, for fridge painting, car, or fence).
3. UV varnish. It has a high cost and, as the name implies, is used where it is necessary to negate the harmful effects of ultraviolet radiation.

There are paints that combine several consumer qualities:

1. Double. It contains both coatings and primers. Before painting with such a solution, there is no need to apply a primer.
2. Triple. It combines three components: a rust modifier, a paint and varnish material and a primer.

When choosing spray paint, it is recommended to pay attention to the following points:

1. If metal is painted, the composition should be designed specifically for this type of material. Usually each paint and varnish coatings has its own specialization: metal, wood, ceramic products, etc.
2. You can choose the right shade faster and more accurately if you use a catalog of standards, for example, RAL or NCS.
3. For the surface, you can choose a paintwork with a certain special effect. For example, commercially available hammerpearlescent and fluorescent aerosols.
4. It is almost always recommended to apply several coats of coatings. This must be taken into account when deciding on the number of cartridges to be purchased.

Spray paint tips

Implementation of the following recommendations will achieve better results:

1. Before applying the paintwork material, it is recommended to degrease the surface with an organic solvent, for example, White Spirit.
2. If paintwork does not contain a primer, the surface must be primed.
3. Before use, the aerosol can should be shaken well for several seconds.
4. When spraying the composition, the can should be 30-40 centimeters from the surface.
5. Paint the surface in 2-3 layers. The interval between application of the layers is approximately 5-10 minutes.
6. To avoid sagging, objects are recommended to be placed horizontally.

Safety precautions

Important to remember:

1. Surface painting can only be carried out with good air circulation in the room. To protect your respiratory organs, eyes and skin, you will need a respirator, goggles and rubber gloves.
2. Paints and varnishes contain fire hazardous components, therefore paint should not be stored or sprayed near open flame sources.
3. The spray can not be overheated in the sun or keep it near the fire. The capacity will explode if it warms up above 50 degrees. It is not recommended to leave aerosols in stuffy rooms (first of all, we are talking about metal garages).
4. Spray paints are rarely adapted to low temperatures. It should also be borne in mind that in cold weather the paint will not lie well on the surface and will peel off.
5. Especially for low and high temperatures, temperature paints have been developed. However, such compositions need to be especially clean: the surface must be especially thoroughly cleaned of dirt and dust. Otherwise, it will not be possible to ensure the proper level of adhesion (adhesion of dissimilar materials) and the paint will simply fall off.
6. Do not open the spray can with scissors or other sharp objects. Even if the paintwork is over, but there is gas left, the container may break.
7. Before use, shake the can for several seconds. This will help to evenly distribute the components of the composition across the tank. If this is not done, the paint will come out unevenly or lumpy.

Paints and varnishes in aerosol cans have earned well-deserved popularity among consumers, as this is the simplest and most universal way of painting the surface. Such paint is especially useful when you need to correct small surface defects or paint small parts.