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LACOVERs powder coating - IT IS:

ALL ABOUT RAL CATALOG

Choosing a color for powder coating is probably the hardest part of the entire coating process. Especially considering that there are an incredible amount of paint colors. In addition, each color can have some effect.

Powder paint cannot be colored on its own. All possible colors are presented in a special ral catalog. There are so many shades that everyone can choose the perfect one for themselves.

Рал каталог

There are five variants of this standard. They were designed for different purposes.

RAL Classic is a complete table of colors used to make paint.

RAL Design is an orderly color chart for design professionals. In it, the color ranking is in accordance with the technological value of tone, brightness and saturation.

RAL Digital is an electronic version of all catalogs. It is required for work in design programs and for automatic design.

RAL Effect is a catalog of matt and metallic colors.

RAL Plastics are shades for plastic application.

This table makes it much easier for professionals to create and select shades.

The history of the RAL catalog

The RAL catalog was developed by the State Committee on Supply Conditions in 1927. In German, the name of this institution is: Reichs-Ausschuss fur Lieferbedingungen. The catalog name is an abbreviation of the committee name.

It is now called the Product Quality and Display Institute.

A catalog has appeared at the request of manufacturers of paint and varnish products. The fact is that manufacturers of paints and their customers are constantly misunderstood because of the colors. The customer imagined one thing, and the manufacturer understood in his own way. Therefore, as a result, the paint could not have the color that the customer expected. Because of this, there was a great need to streamline the color palette and bring it to a certain standard. So the ral catalog appeared. The experts divided all the colors into ranges and gave each shade its own designation. And the problem was solved. Now both the customer and the manufacturer can understand exactly what the color is.

The first catalog had only 40 colors. And now they are more than 200. This catalog is called RAL classic.

Рал каталог металлики

Later variations of the catalog began to appear. In 1993 RAL Design was released. It initially had 1688 colors, then their number decreased. And in 2018, it increased again to 1825. In addition to the usual labels, the names of shades in this catalog are translated into 4 languages ​​(and into Russian as well).

In the powder industry, the RAL classic powder paint catalog is used.

RAL Effect was established in 2007. It contains 420 matte paints and 70 metallics.

A little later, it became necessary to create an electronic version of all catalogs. That's how RAL Digital came about. And with the development of the plastic processing industry, was created a RAL Plastics catalog.

How does the RAL classic for powder paint

In the catalog used to create powder paints, each shade has a four-digit code. The first digit is a color series and the next digit is a color number.

The colors are divided into the following series:

1xxx – yellow,

2xxx – orange,

3xxx – red,

4xxx – purple,

5xxx – blue,

6xxx – green,

7xxx – gray,

8xxx – brown,

9xxx – light and dark colors.

Обозначение цветов в рал каталоге

RAL colors for powder paint

The standard has 213 shades for powder paint. Of these, 17 are metallics. Each series has from 10 to 40 shades. Each of them can have a specific effect: shagreen, moiré, texture and others.

The institute that created the color standard is constantly working and adding new shades to the catalog.

Краска шагрень

Choosing a color for painting, it is necessary to take into account that some factors can distort the shade. This is influenced by the structure of the part being painted, the shine and the lighting.

Because powder paint is non-colorable, it is often a problem that powders of different batches have different shades.

However, if you use high-precision equipment, this problem can be avoided. Lacover takes a lot of time and effort to create the perfect paint. So we always go color in color. You can choose a color for painting in our program.

But sometimes, in order for the shades to match, not only properly produced powder is necessary. Much depends on the coating technology. In such cases, our specialists always advise you how best to apply the paint to keep the color the same.

4 powder coating TYPES

Various options for appearance and degree of surface gloss

General characteristics of Lacover coatings

MODERN PRODUCTION LINES

FREQUENTLY ASKED QUESTIONS

and answers

About company

Do you have a minimum order quantity?

In the presence of powder coating Lacover in the warehouse, delivery from 1 kg is possible.


Is it possible to customize the order with the color we need?

Individual order is possible. Ordering from 100 kg we select the color according to the reference color samples RAL 841-GL or customer samples.


How long does production takes to order?

The standard production time is up to 10 days.

 

About powder coating

What is powder coating?

Special polyester, epoxy resins and their mixtures, pigments and other special additives are mixed, melted and extruded into a thin plate that is crushed, grinded and fractionated. As a result, particles of finished powder coating with a size of 10 to 100 μm are obtained.


How to calculate the rate of consumption of powder coating per 1 m2?

The consumption of powder coating is affected by its composition, density, ability to recover. The rate of consumption per 1m2:
Wrinkle - 150 - 180 g;
Antique - 150 - 250 g;
Gloss - 80 - 110 gr.


At what temperature powder coating can be stored and used?

The temperature in the room where the powder coating is stored must not be below +5 C. When applying the paint indoors, it is recommended to observe the temperature regime from +15 C to +20 C, and also maintain a relative humidity of not more than 80%.


What type of powder coating is suitable for outdoor products?

The least sensitive are polyester powder coating.


What happens if you mix polyester and epoxy-polyester paint?

Mixing of these types of paint leads to the appearance of defects in the surface to be painted. The appearance of spots, craters on the coating, gloss reduction are possible. When moving from one type of paint to another, it is necessary to clean the equipment thoroughly.


What is Qualicoat?

Qualicoat (in translation - quality coverage) is an organization created in 1986 to carry out certification and issue licenses for the use of this quality mark. The organization determines the list of requirements for the quality of coating and equipment of production to ensure a high level of product quality.

About the application technology

Do you need a qualified painter for powder coating?

You do not have to be a professional. It is possible to obtain a uniform, high-quality coating without special qualification.


Is it possible to sandblast the surface for powder coating?

It is possible. When working with sandblasting equipment, the adhesion of the coating improves, rust and scale are well removed from the metal.


How to protect from painting individual parts of products?

Places that are not subject to staining, covered with paper tape, reusable cork of silicone, withstand high temperatures.


What happens when there is insufficient surface cleaning?

When applying powder coating on a poorly cleaned surface, a poor adhesion of the paint to the surface may be possible, the paint may peel off, be subjected to increased corrosion. During the polymerization, craters and spots can form.


Why does the powder coating stick to the product badly, although it is grounded?

Most often this happens when the suspension is unclean after the previous staining. The resistance between the product in the chamber and the ground bus must be no more than 4 ohms. Poor grounding leads to electric shocks, over-consumption of paint or non-color of the product.

About the equipment

What is the heat exchanger necessary for?

The recuperator collects and allows the use of a secondary powder that does not settle on the product during painting.


What is the mains voltage needed to operate the powder coating equipment?

The operation of the polymerisation oven and the powder spraying chamber is 380V.


What equipment to choose for the application of powder coating: electrostatic or tribostatic?

Electrostatic equipment is more productive, regardless of the type of paint, more durable and less sensitive to moisture.

Tribostatic plants allow you to obtain a more even, high-quality coating on complex shape parts.


How can I clean and clean the spray chamber when changing colors?

It is convenient to use a special industrial electric or pneumatic vacuum cleaner to clean the spraying chambers. The usual household vacuum cleaner can not be used, it breaks down when the paint particles hit the electric motor, where it melts and creates a layer of electrical insulation.


How to check the cleanliness of compressed air?

It is necessary to control the purity of compressed air, periodically directing a strong jet on paper or a mirror for one minute and checking the blown surface for contaminants.

On the result of painting

Does the powder coating damage the product if it is bent?

Products with applied powder coating can be collected, bent and molded without affecting the coating.


Why did the surface covered with powder coating, after polymerization, look like the skin of an orange?

It is recommended to check and adjust the thickness of the paint application and increase the temperature in the polymerisation furnace.


What is the cause of yellowing of the painted surface?

The preparation of such a shade is possible at too high a temperature and a long polymerization time.


Why are the surfaces painted with one paint have a different shade?

The reason may be different duration and polymerization temperature. It is also possible that the thickness of the paint application differs or the surface of the product is poorly prepared.


What could be the cause of the appearance of craters on the coated surface?

Deepening in the form of craters are formed with insufficient preparation and cleaning of the surface of the product. It is also necessary to check the air supply settings in the equipment.

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Main information on powder coating

Industrial chemistry has developed a huge number of diverse dyes, among which powder coating easily took one of the leading positions.

Powder coating is a durable polymer coating with anti-corrosion properties, resistant to external environmental factors, and also withstand chemical and mechanical effects.

The coating is made from a fine powder polymer, into which resin-forming resins, hardeners, color pigments, fillers and other additives are introduced.

Advantages of powder coating

Powder coating have a number of significant advantages, namely:

  • High fire resistance due to the absence of solvents and catalysts when used;
  • Long service lifetime of the coating;
  • Moisture resistance;
  • High speed of solidification of paint on the surface;
  • Apply the required thickness of paint from the first time;
  • The possibility of re-use of material that has not settled on the painted surface;
  • Easy to apply even in hard-to-reach places;
  • Environmentally friendly: after drying, the paint is harmless to the environment;
  • Easy storage, compared to liquid paints;
  • Do not require special care;
  • Resistance to wide temperature ranges;
  • Excellent corrosion protection;
  • Good electrical insulation;
  • Powder coating are executed in the RAL color palette, so they can easily become a tool for bold design decisions. It is also possible to imitate the surface for various textures;
  • To work with powder coating, it is not necessary to be a professional.

What you can apply the powder coating on

Before you buy powder coating, you need to determine what kind of product it will be used for and choose from four options:

  • Polyester;
  • Epoxy;
  • Epoxy-polyester;
  • With special effects.

Polyester coatings, as a rule, are applied to objects of external use: cars and transport equipment, billboards, playgrounds, lanterns, fences and other products exposed to the active effects of atmospheric phenomena.

Epoxy coatings have special protective properties against corrosion and chemical influences. Are applied on: industrial objects and the equipment, furniture accessories, pipelines, fire extinguishers.

Epoxy-polyester coatings are applied to products that are used indoors: household appliances (plates, refrigerators, microwave ovens), computer cases, electronic devices.

Also with the help of powder coating you can achieve various effects, namely:

  • The effect of aged metal (antique);
  • imitation of the skin of a lizard or crocodile;
  • metallic;
  • orange peel;
  • marble and others.

The process of staining

The paint particles are electrified, delivered to the surface to be painted, then polymerized at 140-200 ° C, resulting in a high-strength membrane of the required thickness. Particle charge is produced using a relatively simple to operate tribostatic or electrostatic gun.

Lacover powder coating - modern quality standards!

In the production of our powder coating we use quality raw materials from the largest manufacturers and the latest equipment. In our laboratory, we carefully check the components of the future coating for compliance with quality standards, which is why we receive a high class product.

Do you want to buy powder coating? Leave the contact details or call the numbers indicated on the website, and we will select the required coverage, as well as the desired color in the RAL K7 Classic catalog.

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