To date, solvents are presented on the construction market in a fairly wide range. Brands numbered 646 and 647 are in high demand among domestic consumers. At first glance, their compositions are identical. However, there is a rather important difference between them, which determines the scope of the use of these products.

Peculiarities

Solvents include rapidly evaporating reagent mixtures consisting of several active components. They dissolve organic substances and form homogeneous compositions with them.

The main task of the solvent is to dilute paint and varnish products, giving them the required working consistency, therefore they have certain requirements:

• the absence of any reaction with paints and varnishes;
• high evaporation rate;
• the composition must be non-hygroscopic;
• the interaction of the solvent and the coloring composition should occur without any effort.

The solvent affects the paint only at the time of its application, after which it evaporates without a trace. Each paint and varnish product corresponds to a certain type of solvent.

Solvent number 646 is a versatile compound with a wide range of uses.

It is used for work with nitro-based varnishes and paints, and also interacts with epoxy and griffal primers.

The active components of P646 are:

• toluene - 50%;
• butanol - 15%;
• butyl acetate - 10%;
• ethyl alcohol - 10%;
• ethyl cellosolve - 8%;
• acetone - 7%.

The main difference between solvent 646 and 647 brands is their composition.

The latter does not contain acetone, it is considered not so active, due to which it is used on coatings that require the most careful and delicate handling, for example, when working with plastic. In all other cases, brand 646 should be preferred.

To date, solvent manufacturers are conducting research aimed at reducing the concentration of toluene and acetone in the composition of the reagent. This is due to the fact that these substances are often used in the manufacture of synthetic drugs.

Pros and cons of P646

Among the undoubted advantages of such a solvent, it should be noted:

• versatility of use - it is effective on a wide variety of surfaces;
• exceptional dissolving activity - due to the multicomponent composition, the solvent can interact with almost any type of material;
• ease of use - the operation of the product does not require special skills, every person without a building education can understand the technical features of working with the composition;
• availability - the reagent can be bought at all hardware stores at an affordable price;
• when volatile substances dry, the surface acquires additional gloss and a glossy appearance;
• does not leave streaks and greasy spots;
• evaporates quickly and leaves no odor;
• does not cause burns on contact with skin.

At the same time, the product also has a number of significant disadvantages:

• high toxicity of the composition;
• a strong unpleasant odor;
• high combustibility.

Solvent 646 is classified as hazard category III. When inhaled, its volatile vapors can cause pain, nausea, and complete or partial disorientation in space.

It has an adverse effect on the respiratory tract, digestive system, can lead to irritation of the mucous membranes of the eyes and the development of dermatitis. With prolonged work with the chemical, the likelihood of liver poisoning increases, changes in the biochemical composition of the blood and even damage to the bone marrow are noted, which leads to the most serious diseases. That is why the use of solvent number 646 requires special protective equipment. All work is recommended to be carried out in a well-ventilated area or outdoors in compliance with safety regulations.

The composition requires special storage conditions, excluding the release of volatile vapors.

It is stored at a temperature of -40 to +40 degrees Celsius in a sealed container that excludes direct ultraviolet rays.

Do not store P646 on the street, as well as in places where welding work is carried out. Sparks should be excluded, smoking should not be allowed near the storage place - this is due to the high flammability of the composition. When a fire occurs, it is extinguished with water, sand or foam.

Specifications

P646 is sold in liquid form. The composition is transparent, rarely with a yellowish tinge.

Its formula determines the technical parameters:

• the density of the substance is 0.87 g / cm3, which is why it mixes perfectly with other solvents and paints and varnishes;
• the volatility coefficient ranges from 8 to 15;
• coagulation number - more than 35%;
• acid number - less than or equal to 0.06 mg KOH / g;
• the specific gravity of water does not exceed 2% (according to Fisher);
• boiling point - 59 degrees;
• spontaneous combustion temperature - 403 degrees;
• no freezing;
• no viscosity set;
• hazard class - III.

The technology of production and packaging of the solvent is based on the GOST 18188-172 standard.

When buying, pay attention to the structure of the liquid. The composition should be homogeneous, without delamination and the formation of a cloudy precipitate. The mixture should not contain suspended particles.

It is sold in metal containers, as well as in containers made of glass or durable plastic with a volume of 1-10 liters. The composition is completely ready for use, does not require preliminary preparation. Retains its performance characteristics for 12 months. After the expiration date, the solvent is not recommended for use.

Scope of application

R646 brand solvent is used when performing repair and finishing works. Its purpose is the effective dilution of paints, as well as varnishes and nitro enamels. The product works well for all types of paints and varnishes. Recent studies have shown that P646 interacts well with alkyd, epoxy and melamine products, various types of putties and primers.

• to bring paints to the required degree of viscosity;
• for thinning thickened and film-forming varnishes;
• in the manufacture of nitro-varnishes and nitro-enamels;
• the solvent is often added to putty and primer in order to increase elasticity and create the required viscosity, which makes it possible to technologically level surfaces to perfect smoothness.

P646 has exceptional efficiency, it can bring even the oldest and dried paint to the desired consistency.

In addition, with its help, paint tools are cleaned of hardened paint, returning them to working condition.

A separate area of ​​\u200b\u200buse of the solvent brand 646 is considered to be the degreasing of surfaces. If the surface is not degreased before applying the primer, then in place of the remaining spots of fat, the coating will begin to peel off, and adhesion (adhesion of the finish to the base) will deteriorate significantly. All thinning compositions can perform the function of degreasing. However, the use of P646 has its own specifics. This solvent is considered the most aggressive among its counterparts, its use requires special care. Acetone, which is the active component of the solvent, can damage the base, make its structure heterogeneous, and lead to irregularities. Acetone is especially aggressive to plastic, so it is not recommended to degrease plastic surfaces with it.

The substance is toxic and volatile, so it is best to use a respirator and gloves when working. It is recommended to wear special eye protection goggles. If the substance comes into contact with the skin, treat the affected area with warm water and soap. If the solvent gets into the eye, you will have to immediately seek medical help at the nearest clinic.

The solvent refers to materials with increased flammability.

In the room where the work is carried out, it is important to exclude any possibility of sparks - do not smoke nearby, make fire and weld, otherwise the consequences can be the most dangerous.

Some "craftsmen" recommend pouring solvent into gasoline to increase the octane number of the fuel, as well as to clean the injectors and valves of the car's fuel system. However, there are very few confirmed successful results of such actions, which means that there are no guarantees of its effectiveness.

Consumption Р646

The solvent is added to the paint base in small parts with constant stirring until the desired degree of viscosity is reached.

P646 is highly reactive so care must be taken when working with this product, otherwise the treated surface may be damaged.

Material consumption during degreasing per 1 sq. m is:

• for facade work, the required volume will be 0.147 l;
• for surfaces made of metal or wood indoors - 0.12 l;
• for a layer of concrete - 0.138 l;
• for all types of surfaces in conditions of high humidity - 0.169 l.

Solvent brand 646 is rightfully considered one of the most effective solvent compositions, therefore it is widely used in the repair of process equipment.

• Together with varnishes ХВ-784. They are often used in manufacturing plants to cover decarbonizing water tanks and chemical treatment liquids, condensate tanks, water desalination tanks and cleaning pipelines. It is possible to use varnishes and enamels for these purposes only with solvent 646. Its standard consumption will be 0.086 l / m2.
• Together with NTs-11 enamel. which is suitable for processing metal surfaces operating in changeable weather conditions with a high degree of exposure to moisture, including sea water, as well as oil products. P646 is used to dissolve this paint at the rate of 0.528 kg per sq. m. coverage. For non-metallic coatings operating under similar conditions, NTs 1200 enamel is used, it is diluted based on the standard of 0.147 l / m2.
• For interior renovations, preference should be given to enamels NTs-25. The proportion of its dilution is 0.120 liters per square meter of surface.

Putty is used to protect porous layers of concrete and brick from the adverse effects of alkalis and acids. At the same time, it can show its more efficient consumer properties only when diluted with a high-quality solvent - this will require 1.2 liters of P646 per square meter. If putty is used to protect the insides of lighting tanks, acid-base tanks and the insides of sodium-cation filters, the solvent consumption will be lower - 0.138 l / m2.

Enamel EP-5116, used to treat the coating of pipelines and oil sumps, is diluted with a solvent at a ratio of 0.169 liters per square meter.

This solvent is a colorless or slightly yellowish liquid with a specific odor. It is used both in industry and in everyday life for diluting paints and degreasing. With its help, paints and varnishes are brought to the required viscosity. In addition, it is good for them to wash painting tools and remove stains of an organic nature.

The solvent is very effective and versatile due to its special chemical composition. Ethanol (15%), butanol (10%), toluene (50%), ethyl cellosolve (8%), acetone (7%), butyl acetate (10%) - all this reflects the composition of the solvent 646, its technical characteristics also mostly depend on these proportions.

Solvent brand 646 is in great demand due to the following advantages:

• Wide scope. It is suitable for primers, several types of varnishes, enamels and fillers. Therefore, it is a universal tool for interior work. In almost all work with the ceiling or walls, you will have to use it.
• Availability. You can buy it at any building materials store.
• Ease of application. The complex composition ensures that there is no danger of chemical burns and greasy marks.
• Low cost. Due to frequent use, do not forget about the cash costs.

In addition to the positive qualities, the R-646 solvent also has disadvantages:

• flammable;
• has a specific smell;
• toxic.

Properties and technical parameters of the composition

The solvent, which is a compound of volatile organic substances, has the following properties:

• spontaneous ignition temperature +403 °С;
• flash point -7 °С;
• boiling point +59 °С;
• does not freeze;
• does not gain viscosity;
• solvent density 646 - 0.87 g / cm 3.

In addition, it will not be superfluous to look into the passport of the solvent, although most of the numbers will not tell anything to the average person, but the production technologist will be able to give recommendations or prohibit this composition for use based on these parameters. There the solvent has the following characteristics:

• mass fraction of water - 0.09%;
• acid number - 0.06 mg KOH / g;
• ethyl ether volatility - 12;
• coagulation number - 40 g / o;
• dissolving action - no dull and whitish spots remain;
• specific gravity of the solvent 646 - 0.68 kg / l.

What is especially important when planning production and formulating safety precautions is what kind of hazard class 646 has. This figure for him is 3 and is also written in the passport.

Application and safety

A solvent is used to work and form various paints and varnishes, including the nitrocellulose group of paints. With this solvent, they are either diluted before use, or it is added during production.

In addition to this group of paints, it is also used to dilute melanin-amide and acrylic paints and varnishes. Paints and varnishes that used 646 thinner create a film much faster and better, after which it evaporates and leaves no smell.

As for safety precautions, when working with a solvent in a closed room, it is necessary to create good ventilation, and work should be carried out with rubber gloves and a respirator. Goggles will not be superfluous, since the steam affects not only the respiratory tract, but also the eyes. Long-term skin contact may cause dermatitis. In case of contact with skin or mucous membranes, they should be washed thoroughly with soap and water.

Since this solvent is classified as a flammable material, it must be handled very carefully. Never allow sparks, open flames or smoking near the solvent.

When working with varnishes or paints, thinner 646 is very often used. It makes such surfaces much shiny after complete drying. But you need to work with this tool carefully because it has a high activity. This article presents the technical characteristics of solvent 646, its composition, features of use and storage.

Description and composition of solvent 646

What is Thinner 646? It is a colorless liquid (although a yellow tint is possible) with a pronounced odor. It is made according to the GOST 18188-72 standard. The liquid itself is homogeneous, without sediment, turbidity. She shouldn't flake. Can be used in home and industry.

The special composition of this solvent has made it one of the most popular among analog products. Compound:

• acetone - 7%;
• ethyl cellosolve - 8%.
• butyl acetate - 10%;
• ethyl alcohol - 10%;
• butanol - 15%;
• toluene - 50%.

It is worth purchasing this solvent only from trusted companies. These include: Polikom, Yashim, Dmitrievsky Plant, Verkhnevolzhskaya paint and varnish factory. They produce solvent 646 in accordance with the requirements of GOST 18188-72.

Produced in different containers. So, for use in industry, it is bottled in large containers, metal containers. For home use, it is bottled, glass or plastic canisters, and small, metal barrels.

Specifications

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Thinner 646 is often used in construction and renovation. Its technical characteristics comply with the requirements of GOST 18188-72.

• Ethyl ether volatility in the range of 8-15.
• The amount of water (according to Fisher) - up to 2%.
• Solvent density 646 - 0.87 g / cm. cube
• Acid number up to 0.06 mg KOH/g.
• Coagulation - not less than 35%.

Interesting!

Even old, almost dry paint can be rehabilitated by adding thinner 646. And after complete mixing, it can be used for its intended purpose.

• Does not freeze, does not become viscous over time.
• At temperatures over 403 degrees Celsius spontaneously ignites.
• Boiling point +59 degrees Celsius.
• After complete drying, there are no white streaks or spots, films.
• The smell is unpleasant.

Advantages and disadvantages

Solvent 646 has a number of advantages that make it easy to work with.

• This is an affordable tool that is easy to purchase at any hardware store.
• The use is universal.
• It is not difficult to apply it.
• Makes coatings shiny.
• Dissolves well.
• Does not cause burns on contact with skin. Only with prolonged contact (if it is not washed off), dermatitis may appear.
• Leaves no greasy stains.
• Well weathered.
• Leaves no unpleasant odor.
• Affordable price.

The unpleasant smell of this product disappears after complete drying, when a beautiful shine appears on the surface.

This solvent also has disadvantages.

• The substance is toxic - belongs to the 3rd hazard class.
• The liquid product has a strong, unpleasant odor.
• The fire hazard is high.
• The consumption per 1 m2 is quite high, but since the solvent is not expensive, this does not cause difficulties.

The technical characteristics and the specific composition of this substance determined its scope. Apply it to work with varnishes, paints, including epoxy, nitrocellulose, melaninoamide. It will be used as a separate component when creating these materials or to dilute them (to get the right consistency) before applying.

Often, solvent 646 is added to primers and putties to obtain a normal solution that will lie flat on the surface. In certain cases, surfaces are also degreased with this solvent. After working with a solvent, paint brushes and construction tools are often cleaned. It removes paint and varnish residues well and can even remove certain stubborn stains.

To use, you need to open a bottle of solvent and add it to the paint or varnish in the right amount. Usually added in small portions, constantly stirring. If you need to treat some surface, then the liquid is simply applied to an unpainted cloth, and then the surface is wiped with it.

Interesting!

When Thinner 646 is used as an additive to paint or varnish, a film builds up on the surface much faster.

Consumption per 1 m2 depends on what kind of work it is used for:

• for concrete - 0.138 l / m. sq.;
• for facade work - 0.147 l / m. sq.;
• for surfaces made of wood or metal - 0.12 l / m. sq.;
• in conditions of high humidity - 0.169 l / m. sq.

Safety rules for use

In order to avoid problems during work, it is necessary to know and adhere to safety rules.

• The room where the solvent is used must be well ventilated.
• Although solvent contact with the skin never causes serious problems, it is important to wear gloves, a respirator and, if possible, goggles when using.
• If the solvent comes into contact with the skin, it is necessary to wash it with warm, clean water and wash it with soap.
• If the substance has dripped into the eyes, it is necessary to rinse them with plenty of water, and then check with a doctor.
• Solvent 646 is highly flammable, so always use it away from open flames, sparks, and even lighted cigarettes!
• Combination of product vapors and air is explosive!
• When combined with nitric acid or acetic acid, as well as hydrogen peroxide, an explosive mass can form.
• Fire and explosion are possible when the solvent comes into contact with bromoform or chloroform.
• The substance is aggressive to certain types of plastic.

How to store solvent 646

Store this solvent in well-corked jars or bottles. Put it in a room with low humidity, away from heat, direct sunlight and any heating devices. Permissible storage temperatures -40…+40 degrees Celsius. Shelf life 12 months.

Solvent 646 is a mixture of several components, consisting of petroleum products such as liquid aromatic hydrocarbons, acetone, alcohols, ethers.

The substances that make up the product determined its dissolving properties of many organic compounds. The main purpose was originally the ability to dilute paints and varnishes based on nitrocellulose. In the future, the action extended to alkyd, urea-formaldehyde, epoxy paint products.

Effective versatility and low price brought the product popularity and wide distribution.

However, it is not always justified to use a solvent. Given the increased activity, even the aggressiveness of the composition, it may not be fully compatible with the diluted material. Based on this, it is advisable to use adapted thinners of the same class (brand, brand) as the base. This is especially true when priming and painting car surfaces.

Solvent 646 composition

Solvent 646 GOST 18188-72 must have the following composition of chemical components:

• toluene (methylbenzene) 50%;
• ethyl alcohol 15%;
• butanol 10%;
• butyl acetate (amyl acetate) 10%;
• ethyl cellosolve 8%;
• acetone 7%.

It must be said that toluene and acetone are classified as precursors, substances involved in the manufacture of drugs. Therefore, many manufacturers produce solvent according to departmental specifications, which make it possible to reduce the total concentration of toluene and acetone to less than 50% in the mixture.

Solvent 646 Properties

This product is a clear liquid, colorless, a slight yellowish tint may be present, and has a characteristic ethereal odour.

The relative density of solvent 646 is 0.87 g/cm3 and allows it to be completely miscible with other organic compounds.

It has the following features:

1. Diluting action. The tool is used to dilute thickened enamels and paints, primers and putties, film-forming varnishes to give the desired consistency. Forms a smooth glossy film on the painted surface, without whitish traces.
2. dissolving power. Effectively copes with the dilution and dissolution of dirt, paint stains from any surfaces.
3. toxic properties. With a short-term effect of an increased content of vapors in the air on a person, loss of orientation, dizziness, and other negative effects are possible. The mucous membranes of the eyes, respiratory tract, gastrointestinal tract, and liver also suffer. With long-term contact, the composition of the blood and bone marrow worsens, leading to irreversible consequences.
4. Aggressive to some types of plastic.
5. Refers to flammable liquids.
6. Assigned hazard class 3 - moderately dangerous in terms of the degree of harmful effects on the environment.
7. Not subject to freezing.
8. Stable, does not change color, does not exfoliate, does not precipitate.

The solvent of this brand is one of the most chemically active, so you should use the product carefully so as not to damage the main coating of the surface to be cleaned.

It is produced completely ready for use, without the need for additional preparation.

Solvent 646 specifications

646 solvent: application

The solvent composite is used in painting finishing works with nitro products, takes part directly in their production. In addition, it successfully copes with bringing to the desired viscosity a group of paints and primers labeled EP, GF, MS, MCH, AK, and other substances of organic origin.

Solvent 646 is indispensable as a stain remover, it cleans hands, surfaces of various nature, including textile ones, from paints. Washes painting tools - brushes, rollers, spray guns, various equipment.

The scope of application extends from the petrochemical, light industry, mechanical engineering, car services to the production of perfumery and cosmetic products, and household use.

Precautionary measures

When working with the product solvent 646, you should use personal protective equipment and observe fire safety. The solvent substance can enter the body through the respiratory tract and skin.

Considering that solvent vapors are toxic in high concentrations, the room must be well ventilated or have forced ventilation. Use a respirator or medical mask as protection.

It dries the skin upon contact with the body, and may cause irritation on prolonged contact. Wash the area of ​​contamination well with soap and water to remove residues of the substance. Work with gloves.

The solvent is flammable. Do not smoke or work near open flames. In case of fire, extinguish with sand, foam extinguishing agents, water spray.

Storage conditions

646 solvent is sold in glass and plastic bottles, in industrial containers. Store in sealed packaging, in ventilated areas, away from direct sunlight.

Note information: , .

Solvents are special volatile compounds, their purpose is to effectively dilute other materials. They can be both organic and inorganic in nature and are used to give varnishes and enamels a consistency suitable for repair work.

One of the most popular solvents is the composition of brand 646 - it has found wide application both in everyday life and in industrial construction.

Properties and composition

Solvent 646 has a multicomponent formula, it is an active substance that is widely used for all types of repair and finishing and construction work. It is necessary when working with nitro-based enamels and paints, and is also optimal for dissolving epoxy and glyptal primers. It is noteworthy that after all volatile substances evaporate, the surface acquires a slightly shiny, glossy shade.

As a rule, the solvent has no color. But in some cases, the appearance of a slight yellow tint is allowed, it is distinguished by a pungent unpleasant odor.

The structure of the substance consists of the following active components:

• acetone - 7%;
• ethyl cellosolve - 8%;
• ethyl alcohol - 10%;
• butyl acetate - 10%;
• butanol - 15%;
• toluene - 50%.

The production of solvents is allowed in mandatory compliance with the existing GOSTs, in this case the standard 18188-72 applies - this is a forced measure, since the solvent of this brand is often used for the manufacture of synthetic drugs.

For the same reason, active technical work is now underway to change the composition of the solvent in such a way as to limit the scope of its illegal use.

The popularity and wide scope of use of solvent 646 is due to its high consumer characteristics:

• affordable price - this tool is sold in all hardware and construction stores and has a low cost;
• practicality - especially for consumers, the label contains complete information and the method of applying the composition, thanks to which each person, even without any experience in finishing, can deal with the features of the work;
• functionality - the solvent has a multicomponent structure, therefore it can interact with almost any type of material;
• it is used for high-quality degreasing of surfaces, after work it does not leave any marks on the surface;
• after surface treatment gives it a glossy shade;
• contact with this substance does not cause burns and irritations on the skin.

The solvent also has disadvantages, the most significant include:

• high degree of toxicity - the material is classified as hazard class III, which is why all work must be carried out strictly using personal protective equipment (respirator, goggles and gloves);
• fire hazard - it is strictly forbidden to work near sources of fire, it is forbidden to smoke near the place of work;
• sharp chemical smell - surface treatment should be carried out in a well-ventilated area, and it is also worth taking care to protect the organs of vision, since the fumes of this solvent can irritate the mucous membrane of the eyes;
• special storage conditions - it is necessary to use sealed closed containers, the solvent can only be stored outside residential premises.

The high demand for the product has given rise to an unpleasant phenomenon - today the market is literally flooded with a large number of fakes, and in addition, users note a deterioration in quality characteristics even in products manufactured by well-known manufacturers.

Many consumers confuse solvents of the 646 and 647 brands. Indeed, in terms of their functionality and physical and technical properties, they are quite similar, in addition, both compositions are produced in small tanks of 0.5 l and 1 l, for household needs and in barrels - for industrial. They are produced in Russia and have a very wide application.

The difference lies in their composition. So, M646 includes ethanol, toluene, butyl acetate and ethyl cellosolve, and 647 has the same components except acetone. In this regard, it is less aggressive and more suitable for delicate surfaces that need gentle handling.

It should be noted separately that the use of a 646 brand solvent requires accuracy and compliance with the necessary safety regulations, since the composition belongs to the highly active category, therefore it interacts well with glyptal and epoxy compounds, as well as nitro-varnishes and nitro-enamels.

But brand 647 is more often bought for diluting nitrocellulose materials in order to give them the required viscosity, it allows you to smooth strokes and paints on the surface.

Specifications

Composition 646 has dangerous volatile components in its structure and exhibits special physical and technical properties:

• colorless or light yellow;
• spontaneous combustion t +403 degrees;
• boiling t +59 degrees;
• t flash -7 degrees;
• material density - 0.87 g/cm3;
• does not freeze, therefore, such an indicator as freezing t is not calculated;
• does not change viscosity.

In addition to the indicated indicators, one should dwell separately on the passport of the solvent, which for an ordinary person, far from the production of paint and varnish products, will not say anything, however, technologists of manufacturing enterprises always pay attention to a number of indicators, depending on the numerical value of which they can be banned or, conversely , recommend the use of a particular product. For the product in question, these characteristics correspond to:

• acid number - 0.06 mg / KOH / g;
• octane number - 40g / 0;
• mass fraction of water - 0.09%;
• degree of volatility - 12;
• specific gravity - 0.68 kg / l.

The shelf life does not exceed 1 year in case of absolute tightness of storage.

Application area

The first thing you need to know about the use of solvent 646 is that work with it can only be done in the temperature range from +5 to +30 degrees, while the humidity should not exceed 85%.

The solvent is introduced into the working medium in small portions and actively mixed so as to achieve the desired consistency.

The composition dissolves the primer, putties, all kinds of varnishes and enamels, and in addition, it can clean varnishes and paints that accidentally appeared on the surface and clothes, as well as return rollers and brushes to a usable state after painting work.

More precisely, the scope of its effectiveness involves working with nitrocellulose, glyphthalic, as well as acrylic, melaninamide and epoxy varnishes, paints and enamels.

It is used as an active ingredient in the production of these materials and in everyday life in order to dilute them to an optimal state before use.

This reagent is often added to putties and primers to create a functional consistency that will allow you to create perfectly smooth surfaces.

Separately, one should dwell on the issue of using a solvent to degrease surfaces. This part of the work is extremely important, since non-degreased materials significantly reduce adhesion during staining and varnishing, as a result, the applied layer becomes stained or peels off.

Yes, the use of a solvent copes with this task, but its use has its own nuances. To begin with, it should be borne in mind that this composition is one of the most aggressive among all analogues, therefore, work requires caution and accuracy, since the components of the composition can dissolve the base. With this composition, you can degrease the bath and other metal objects, cleaning the nozzles is also within the power of the composition. But for the preparation of plastic, such a solvent should not be used - acetone is aggressive towards plastic, so brand 647 should be preferred when working with it.

Manufacturers

As already mentioned, in recent years, the quality of 646 brand solvents on the market has been deteriorating, and in addition, a wide variety of fakes have appeared. Therefore, it is very important to purchase a product from a manufacturer who has won the trust of consumers due to exceptional quality and reliability, as well as stability over the years. Users recommend giving preference to products from several manufacturers:

• Dmitrievsky chemical plant. This company is one of the oldest in Russia, but at the same time one of the most dynamically developing. The company manufactures products for the needs of the paint and varnish, leather, rubber, and food industries. Products of this brand are known far beyond the borders of our country - for several decades, products have been supplied to 70 countries of the world.

• Verkhnevolzhskaya paint and varnish company. This is another leading supplier of enamels, paints and varnishes in our country, as well as in the CIS countries and far abroad. The assortment list of goods includes a wide choice of paints and varnishes, solvents and primers.

• "Polycom". Domestic brand specializing in the production of household and industrial chemicals. The enterprise is fully automated, and the manufactured products meet all major international standards. In addition, users note the Tex universal solvent, which is in consistently high demand in the modern market.

All these brands are characterized by increased attention to quality control, they work and produce solvents in strict accordance with the current GOST standards.

Safety

Solvent 646 has special operating and storage conditions. The composition is poured into a special container: from bottles of 0.5 liters to barrels of 200 liters.

When transporting and storing the composition, one should not forget that the product belongs to the category of flammable, therefore:

• the glass or metal container in which the material is contained must be hermetically sealed and closed, water ingress is strictly prohibited, and contact with direct UV radiation and elevated temperatures should be avoided;
• the room where the composition is stored must be well ventilated, it should achieve an absolute absence of ultraviolet rays and sources of fire.

In order for construction and finishing work using a solvent to be as safe as possible, all of the following requirements must be met:

• you should always remember that it is extremely toxic;
• it is important to protect the eyes from the solvent;
• during surface treatment, it is necessary to use goggles, gloves, and a respirator;
• in case of contact of the solvent with the skin, if it gets on the mucous membranes, the affected area should be washed with plenty of water at room temperature.