Enamel XB-785. Technical characteristics and purpose

The paint and varnish plant produces enamel in the following colors: yellow, ivory, grey, red-brown, black, white. It is possible to produce other colors upon special order. The drying time of the coating at a temperature of (20±2)°C is one hour - to degree 3, 24 hours - to degree 5. If necessary, the enamel can be diluted to working viscosity with solvents R-4 or R-4A.

The prepared paint is applied to the primed surface with a brush, airless or pneumatic spray. Application should be carried out in a warm room at a temperature from -10°C to +30°C and a relative humidity not exceeding 80%.

Technical characteristics of enamel XB-785

  • Color - any at the customer's request;
  • Drying time to Art. 3 at a temperature of (20±2)°C - no more than 1 hour, to Art. 5 - no more than 24 hours;
  • The proportion of non-volatile substances by weight of enamel is 23-36%, wt.;
  • Consumption per layer - 115-145 g/m²
  • Recommended layer thickness - 18-23 microns;
  • The recommended number of enamel layers is 2-3;
  • The surface temperature must be at least 3°C ​​above the dew point.

Diluent

Solvent R-4 and R-4A are used as a diluent.

Composition and scope

The scope of application of paint and varnish material is wide. Enamel XB-785 is suitable for painting surfaces made of different materials:

  • metal;
  • tree;
  • concrete;
  • reinforced concrete.

The composition of the paint and varnish material includes polyvinyl chloride chlorinated resin. XB-785 enamel is based on an organic solvent, a plasticizer and additional components. In addition to the main components, pigments are included.

Attention! The components included form a durable protective layer. The painted surface is protected from the destructive effects of acids, gases, salt solutions and alkalis. Maximum protection is permissible at temperatures up to +60 degrees C.

Technical description

HV-785 paint is manufactured in compliance with the technical requirements of GOST 7313 of 1975. The standards for varnish XB-784 are also specified here. Based on the document, the finished compositions are a suspension based on chlorinated polyvinyl chloride or alkyd resin. The solvent of the main components is an organic solvent. Plasticizers and tinting agents are also added here. In addition to the above, the black mass includes pencil graphite.

Based on the properties of the base resins, you can determine what perchlorovinyl paint is. The composition belongs to the group of finishing materials that provide a dense coating with protective properties. Due to its high adhesive ability, substrates such as metal (structures and equipment), concrete and reinforced concrete products, and buildings can be processed.


Painting of metal structures by spraying Source ur-spk.ru

Operating conditions include aggressive gases, various acids, saline and alkaline solutions, the heating limit is +60 degrees Celsius. For exterior work, only dark samples are used. Based on the regulatory document, the color range is limited to yellow, gray, white, black, red-brown and ivory. Many manufacturers offer tinting services for the base base using other pigments.

Technical characteristics of paint XB-785. that are important to the consumer:

  • at ambient temperatures above +20 degrees Celsius, complete drying of a single-layer coating takes about 1 hour, in other cases no more than 24 hours;
  • the minimum thickness of one layer is 17-24 microns;
  • the recommended number of layers applied is at least 2-3;
  • operating air temperature ranges from -10 to +30 degrees, relative air humidity should not exceed 80%;
  • The service life of a three-layer coating is about 6 years (longer in a room with normal humidity).

The consumption of XB-785 enamel per 1 m², as well as the covering ability, depends on the content and nature of pigmenting substances (in grams):

  • 150 – yellow;
  • 90 – white;
  • 80 – ivory;
  • 70 – gray;
  • 65 – red-brown;
  • 60 – black.


Covering ability of paint Source kraskinadom.ru
Perchlorovinyl paint contains toxic substances and volatile components that are highly flammable. Upon closer examination, acetone, butyl acetate, Syvol, and lead compounds can be identified. P4 and P5 are used as solvents, the evaporations of which also negatively affect the general state of human health. All of the above suggests that the material should be used with gloves, safety glasses and a respirator. It is important to ensure good ventilation in the room.

See also: Catalog of companies that specialize in finishing materials and related work

Specifications

All paints and varnishes have technical characteristics. Manufactured in accordance with GOST 7313-75. At an air temperature of +20 degrees, the enamel dries in about 180 minutes to the third degree. Within a day, the surface will dry to the fifth degree, no sticking.

Important! The paint and varnish material XB-785 is resistant to carbon dioxide, sulfur dioxide, and chlorine gas. When completely dry, the enamel reduces the harmful effects of the environment.

The thickness of one layer is from 18 to 23 microns.

Briefly about the main thing

XB-785 paint is a covering material for finishing and protecting concrete or metal products.

The composition is characterized by a high degree of chemical resistance to various types of aggressive operating conditions.

The composition contains resins, organic solvents and additives that can be harmful to health and are flammable substances.

When working with paint, it is important to comply with environmental conditions, proper preparation of the base (including vinyl chloride primer), and protection of vision, breathing and skin.

Facade paint for facades of the XB-161 brand is similar in quality and composition.

The composition differs within the group into A and B - for the general spectrum and critical objects.

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Applying enamel

Before applying, the paint in the can should be thoroughly mixed. In order for the color and tone to be uniform. If necessary, use the solvents indicated on the packaging.

The whole process can be divided into several stages. At the preparatory stage, the surface of the structure is cleaned of grease, dirt, and dust. If the previous dry paint has cracked and started to peel off. It should be removed. If there is rust, it should be removed.

After cleaning, the structure is coated with a primer. The number of primer layers depends on the wear of the structure. Next, prepare the tools for painting: brush, roller, sprayer. Each layer is applied at intervals of 60 minutes.

Enamel belongs to the flammable group. Contains harmful substances. When working with this paint and varnish material, use personal protective equipment. Work only with gloves and a respirator. Follow fire safety regulations. To prevent fire, keep a fire extinguisher in an accessible place. When working indoors, it must be well ventilated.

Terms of use

Perchlorovinyl paints are materials for working on metal or concrete facades. Each substrate has limited adhesion due to its high density surface. There is also weak chemical activity. Therefore, to obtain the highest quality result, it is necessary to properly approach the preparation of the work site.

Peeling of the covering film often occurs due to dust, dirt, and oily stains. Negligence towards the remains of old paint, rust, and fungal formations is also often manifested.


Painting metal with rust residues Source egocolor.ru

All of the following must be eliminated:

  • stains are treated with a degreaser;
  • Corrosion with mold is first removed by exterminators, then preventative treatment of the areas with protective agents is carried out;
  • foreign particles are removed mechanically.

To improve adhesion with the base, 2 actions are taken. First, a uniformly rough surface is formed. In the case of concrete, you can use abrasive attachments on power tools; metal is easier to prepare by shot blasting or sandblasting. An alternative for small areas is a hand brush.

A clean, properly prepared surface must be primed before painting the facade or metal with perchlorovinyl enamel. Here, chemical-resistant compounds based on vinyl chloride are used. These include XC-010, XC-059 and XC-068.


Chemical-resistant primer XC-059 Source lidalkm.by

Areas of application

Enamel is used to paint the following objects:

  • containers, large volume tanks;
  • industrial installations, baths, barrels;
  • metal objects, frames, during construction;
  • various mechanisms, equipment and pipelines through which cold and heated water is supplied;
  • equipment and installations that operate at low or, conversely, high temperatures;
  • industrial galvanic installations;
  • all kinds of mechanisms and technological machines;
  • passenger and freight road transport.

Terms and conditions of storage

The enamel must be kept in an airtight container away from sources of fire. A dry and dark place is ideal for storing the substance. Storage temperature can be from -30 to +30 degrees.

If the shelf life is exceeded, the viscosity of the composition increases. However, this does not provoke a violation of its properties. Solid particles may settle in the enamel or pigments may flake off. However, when the composition is mixed, the characteristics are completely restored. After opening, the product's shelf life does not exceed 6 months.

Color palette

Products are available in various shades - white, gray, beige. Enamel is also produced in a black, yellow, red-brown palette. The color of the coating can be chosen depending on the requirements and needs.

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However, it is important to take into account a number of features.

For example, the darkest dyes are used for external surfaces, which are more exposed to external factors. Lighter substances are usually used indoors.

Safety regulations

This enamel is a highly flammable, fire-hazardous material, as it contains sovol, butyl acetate and acetone. In addition, it is toxic and harmful to human health, because it contains lead compounds and organic solvents, which during evaporation have a detrimental effect on the human respiratory organs. Taking this into account, during painting work it is imperative to ensure high-quality ventilation of the room. Painting can only be done while wearing personal protective equipment, such as gloves, goggles, a respirator or a gas mask. It is advisable to paint products outdoors, in well-ventilated areas.

It is prohibited to apply enamel near fire sources, sparks and heating devices. In the event of a paint or painted surface fire, the following fire extinguishing agents can be used: air-mechanical, chemical foam, felt felt or sand. If XB-785 gets on the skin or in the eyes, they should be rinsed immediately with plenty of running water.

Enamel XB 785: characteristics, consumption, storage conditions

If all necessary conditions are met, the theoretical consumption of this enamel is 125-150 g/m2 per layer. The manufacturer recommends applying two layers at a thickness of 60-100 microns.

The paint must be stored in a tightly sealed container (at a distance from open heat sources) and always indoors at a temperature from -30°C to +30°C, in a dark and dry place. During long-term storage, an increase in the conditional viscosity of the paint is allowed, as well as settling and delamination of pigments in it. Six months after opening, the paint is considered unsuitable for further use.

Enamel XB-785 is chemical resistant. Technical characteristics and recommendations for use

Before starting work, it is necessary to clean the surface to be treated from rust or other contaminants (the plane of the metals must have the same roughness and metallic luster). To do this, you can use shot blasting or sandblasting. If it is impossible to use the above methods, the use of cord brushes is allowed. It should also be noted that the surface must be cleaned to the degree of degreasing in accordance with GOST 9.402-2004 (it is recommended to use white spirit). Afterwards, you will need to prime the metal surfaces with the following grades of primer: XC-068, XC-010 and XC-059. Having completed all the preparatory work, you can proceed directly to painting.

How to apply XB-785 enamel? The technical specifications allow the following methods:

  • roller;
  • brush;
  • pneumatic spray;
  • airless method;

The paint and varnish material must be mixed well to obtain a homogeneous mass. In some cases, the use of solvents will be necessary to obtain working viscosity (they can also be used to clean instruments). A prerequisite is to avoid moisture condensation. To do this, you need to make sure that the temperature of the surface being treated is at least 3 °C above the dew point. The paint must be applied in layers. The first one dries in about 1 hour (at an air temperature in the working area of ​​+20 °C). The next layer is applied only if the previous one is completely dry.

This enamel can be used together with XB-784 varnish.

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