Solvent P-4: Composition And Density, Application Features, Analogues And Brands

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Solvent P-4: Composition And Density, Application Features, Analogues And Brands
Solvent P-4: Composition And Density, Application Features, Analogues And Brands

Video: Solvent P-4: Composition And Density, Application Features, Analogues And Brands

Video: Solvent P-4: Composition And Density, Application Features, Analogues And Brands
Video: How to Select the Best Solvent for Crystallization? 2024, March
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If, during finishing work, the question arose about buying a solvent, many people prefer the P-4 composition. It is used not only during repair work, but also in everyday life.

To understand what are the reasons for its relevance, you need to have an idea of its features, purpose and precautions when using the composition.

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Distinctive features

R-4 is a multicomponent mixture based on chemical compounds, presented in the form of a transparent liquid. Sometimes it can have a characteristic yellowish tone. This material does not include visible suspended matter, has a high degree of volatility, as well as a specific odor. It is irreplaceable when performing painting work, contains components that dissolve paints and varnishes. According to the manufacturers, the composition makes it economical to use the materials to which it is added.

Thinner R-4 is a universal composition that is compatible with various painting products. It can be used to dissolve various types of varnishes and enamels., which allows you to achieve the desired degree of viscosity and density of the working coating solution. When mixed with other formulations, it does not form lumps and delamination.

Its distinctive feature is the fact that its addition to paintwork materials does not make the painted surface matte, as when diluting the coloring compositions with other solvents.

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Since the composition contains volatile components, when opened, it is added to the paintwork and immediately closed. You need to work with the prepared material within a short time., since its onsistency during operation will change, which may affect the thickness of the applied layer. Do not keep the solvent open during work.so as not to be poisoned by toxic fumes. In addition, if the bottle is opened, the amount of liquid inside it will gradually decrease.

Due to volatility you need to store the composition by tightly closing the lid … When the solvent is not needed, it is covered and removed to a dark place where it will not be exposed to direct sunlight.

It is important to remove it away from children, take into account the storage period and temperature specified by the manufacturer. The choice of location must be taken into account, since the material is explosive and can ignite from any spark.

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Composition

The components of the solvent are butyl acetate (12%), toluene (62%) and acenton (26%). Due to the concentration of the constituents, the solvent is characterized by high fluidity. Due to butyl acetate, the material enhances the gloss of the materials applied to the base. It also prevents paint fading and fading.

Specifications

The R-4 solvent is made using new technologies using modern equipment. Therefore, it is distinguished by high quality and performance indicators.

In addition to the lack of coagulability, the composition is characterized by the following physical and mechanical characteristics:

  • mass fraction of water according to Fischer - 0.7%;
  • ethyl volatility - 5-15;
  • acid number - 0.07 mg KOH / g;
  • coagulation level - not less than 24%;
  • packing - from 0.5 to 10 liters and more;
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  • flash point - -7 degrees C;
  • spontaneous combustion - from +550 degrees C;
  • substance density - 0.85 kg / l;
  • container - a plastic container or glass bottle.

The density of a substance is determined by temperature and can have a measurement error of up to 5%. With regard to packaging, it can be noted that it differs in the type of use. For example, for household needs, the composition is packed in containers with a capacity of 0.5, 1, 3, 5.10, 20 liters. Moreover, the weight for every 0.5 liters will be 0.4 kg, which you need to know when buying a solvent for the total amount of paint.

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Packaging for industrial applications is larger. Today it is 100 and 216 liters. The weight of the finished product in such containers is 72 and 165 kg, respectively. It is worth considering that the volume of packaging may vary from manufacturer to manufacturer, which can be specified when purchasing in the description of the labeling. In this case, the weight of the material per 1 liter may also differ.

The shelf life and storage of the solvent is 12 months. During this time, the components that make up the composition do not change their properties. After the expiration of time, the material must be disposed of. However, the solvent must not be allowed to enter wastewater or groundwater.

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Appointment

R-4 can be used for effective dilution of paintwork materials, which are based on resins (PSH LS, PSH LN, epoxy) or vinyl chloride copolymers, as well as other film-forming substances with the exception of XV-124 enamel.

The composition is used not only by ordinary craftsmen, but also by professionals. It can be used to paint surfaces in a mechanized way using a spray gun. In addition, it is suitable for more than just thinning: it can be used for degreasing different types of surfaces.

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It can be used to dilute primer compounds XB-062, XB-079, XC-010, XC-059, XC-068, XC-077, MS-067 and putties XB-004, XB-005, EP-0020. This composition copes well with paint stains.to be removed. It is able to degrease surfaces and wash brushes after painting.

Using it, you can cope with the preparation for finishing problem areas of floors, which will contribute to better adhesion. Besides, Thinner P-4 can easily remove certain types of adhesives from different surfaces.

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Consumption for 1 m²

Manufacturers indicate on the packaging of the solvent the approximate consumption per 1 sq. m. It is impossible to give exact data, since in each case an individual amount of liquid will be required per liter of diluted material. It depends on the density, as well as a number of factors that directly affect the consumption of volatile material.

These include:

  • application method (when applying paintwork manually and by spraying, the consumption is different);
  • the air temperature in the room (the higher it is, the faster the liquid evaporates);
  • shelf life of the paint or enamel used;
  • the category of paintwork materials.
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Approximate consumption rates kg / l for specific paintwork materials look like this:

  • varnish XB 784 - 50% by spraying and 25% by airless application;
  • primer XC 010 - 40% when using a spray and 30% when using a brush;
  • enamel PF 115 / PF - 12-15% when applying paint with a brush;
  • enamel ХВ 124 / ХВ - 50% with a compression method of application and 35% with an airless method.

The concentration of the solvent in the paint must not be exceeded, as this may cause the paintwork to lose its best qualities.

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Application features

The solvent is used in dosage, adding it to the working material in small portions until the paintwork material reaches the desired consistency. In order for the composition to make the working material as effective as possible, its share should not exceed 10% of the total amount of paint and varnish … It is important to ensure that no water gets into the diluted material when working with it. This is especially detrimental to paint, since, despite the presence of butyl acetate, it will cause distortion of the paintwork color. If water gets into the diluted composition, the transparent materials will turn white.

If the surface is degreased, the composition does not need much. No matter how much it is poured onto the base, it will dry completely. It is not the quantity that matters, but the quality of processing … In addition, one should take into account the fact that thinning of viscous substances is convenient for application, but not always necessary. This is especially true for plaster primers. Therefore, when buying finishing and painting materials, you need to thoroughly study the instructions on the package.

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Precautions

The composition is toxic and can accumulate inside the body. The solvent vapors released into the air are harmful to humans, which in some cases can lead to dizziness, while others can lead to loss of consciousness and even death. You can't work without fresh air, since inhalation of vapors in an enclosed space for a long time can lead to clouding of consciousness, disorientation, drug intoxication, swelling and damage to the central nervous system and the digestive tract.

When working, it is important to provide ventilation in the room where the painting is carried out. If there is no hood, you need to open windows or vents. To protect against toxins, you need to use a respirator or mask.

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In addition, it is necessary to protect the skin of the hands by wearing gloves. If the composition is in contact with the skin for a long time, the liver may suffer from this. Therefore n If the mixture comes into contact with the skin, immediately wash it off with warm water and soap.

If you notice signs of dizziness, you should drink as much water as possible to induce vomiting and clear your stomach. For symptoms of poisoning, you need to call an ambulance.… Do not smoke indoors, do not allow the slightest spark to appear near the solvent. It is necessary to extinguish the composition with fine spray water, as well as fire extinguishing agents in the form of fire extinguishers with chemical and air-mechanical foam.

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What to replace?

Solvent P-4 has its analogs. If for some reason it was not at hand, or a different composition with the same quality indicators is fundamentally needed, you can replace it with the following means:

  • R-4A … This solvent is the closest analogue of the agent under consideration for diluting paintwork materials. Unlike P-4, the 4A variety does not contain butyl acetate. Due to this, it can interact with enamels of the XB-124 type.
  • R-5 / R-5A … These formulations are characterized by a wider range of applications. The concentration of chemical components in them is somewhat different: toluene is present in the composition of 40%, acetone and butyl acetate account for 30% each. These solvents are suitable for use with rubber, silicone and polyacrylic resins.
  • P-12 … In this solvent, acetone is replaced by xylene. Therefore, the ignition temperature of this material is significantly lower and is +490 degrees C. It is used in auto repair shops. With this composition, you can dilute car enamels and remove old car paint.
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However, the composition is not so versatile, so it must be mixed with care. For example, when combined with hydrogen peroxide, acetic or nitric acid, it forms explosive mixtures. It is aggressive towards plastic surfaces. Choosing P-4 or its analogues, you can take a closer look at the products of different brands. For example, a well-known solvent manufacturer is "Dmitrovsky chemical plant", whose products are now known and in demand not only in the domestic market, but also in 70 countries of the world.

Another well-known solvent developer is the Belarusian company "Naftan" … The company is constantly improving the efficiency of its assortment, offering customers high-quality R-4 solvents for household use in packages of 1 and 2 liters.

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You can take a closer look at solvents Profi and "Solv" … The first composition is actively used for dilution to the desired consistency of glyphthalic, acrylic, epoxy, melaninoamide and nitrocellulose paints and varnishes. The solvent "Solv", depending on the variety, is used to dilute ethyl silicate and epoxy paints and varnishes.

For information on the difference between a solvent and a thinner, see the next video.

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