Paint PF-115 has high adhesion to various surfaces, therefore it is used for finishing works, for painting metal structures and mechanisms. It has decorative properties, normally tolerates exposure to ultraviolet radiation and moisture. After hardening, its layer is elastic, which reduces the likelihood of cracking and chipping with the flexibility of painted objects. PF-115 enamel, the technical characteristics of which differ depending on the color, according to GOST may have a different ratio of components. As a result, it can have a different service life.
Enamel PF-115 was developed and released on the market more than 60 years ago. Despite the fact that there are more modern compositions, it is still considered one of the most popular for various kinds of finishing work. Its popularity is justified by its affordability and breadth of application. The paint is manufactured in accordance with GOST 6465-76.
Attention! To reduce the cost of the composition, individual manufacturers change the chemical composition of the enamel, which often negatively affects its operational properties.
You can determine such a product by the information on the bank on the compliance with the TU. Almost always, GOST paint is the best.
The name PF-115 is a marking. The letter designation, consisting of the symbols "PF", means that pentaphthalic varnish is used as a binding base in enamel. This substance is classified as an alkyd resin.
It is because of this that pentaphthalic enamel can be used for external and internal work. The numerical part of the name also carries information. The number "1" indicates the possibility of using paint in different temperature conditions, and the inscription "15" is a serial number, which is defined in GOST.
As for the physical state, alkyd paint is a viscous mixture of liquid with a suspension of solid particles. It contains:
Depending on the shade, the chemical composition of the enamel may differ. This is partially reflected in the different percentages of the components. Colors of excellent color have their own saturation. For the conditional volume of one paint, you need literally a couple of drops of a color additive, and for others, tens of times more.
Which is better?
The difference in chemical composition directly affects the performance properties of the dry coating resulting from the drying of the paint layer. The most stable is white enamel, since 28% pentaphthalic varnish is added to it. In blue paint it is 26%, and in gray only 20%. Many components for providing and fixing color are able to make the composition more durable, so it cannot be said that white enamel will be the best in terms of service.
This material has a number of properties that make it the best choice for achieving decorative stable color and long-term protection of the painted surface.
The components used for its manufacture are relatively inexpensive, which makes this product affordable.
Table 1. Properties of PF-115 enamel.
|Mass fraction of residual substances after drying||48-71%|
|Gloss level||from 50.5%|
|Viscosity at 20 ° C||60-123|
|Curing time at 20 ° C||up to 24 h|
|Hardness|| 0. |
|Impact resistance||up to 40|
|Spreading rate||60-115 g / m2|
|Consumption||100-200 g / m2|
|Substrate temperature at application||from +5 to + 35 ° C|
|Operating conditions||-50. .. + 60 ° C|
The complex chemical composition of the enamel requires careful handling.
It is necessary to protect the eyes and skin from drops. The paint contains flammable substances. This prohibits its use near sources of fire. Alkyd enamel has a pronounced odor and moderate toxic properties. When used indoors, constant ventilation is required until evaporation is complete.
PF-115 universal paint, due to which the composition can be used for painting:
Warning Although the paint adheres well to various materials, it cannot be used on surfaces subject to strong heat. This primarily applies to the roof. The decorative layer created with its on slate or sheets of tin can crack and fade. It is destroyed by a combination of ultraviolet radiation and heat.
The enamel should only be applied when observing the temperature range from +5 to + 35 ° C. It is unacceptable to use it for painting hot heating radiators and other warm communications. In this case, an unnaturally rapid evaporation of volatile substances occurs, as a result, accelerated drying is observed. Such a layer does not gain sufficient bonding properties. Surfaces painted under these conditions are prone to cracking, loss of color and flake off.
The enamel is ideal for interior works, as well as for painting surfaces outdoors that are in the shade or do not warm up. The paint can be used as the only means of protection and decoration, and such paint is applied on a special primer, antiseptic impregnations and rust converters. Applying PF-115 on hygroscopic surfaces that will be in an important environment requires the use of antibacterial and antiseptic additives. The paint itself does not have such properties.
Dried enamel painted surfaces can be used in various thermal conditions from -50 to + 60 ° C.
Paint should be applied in multiple coats to ensure this durability. One-coat application is only permitted if old coatings are renewed without cracks or blisters. Even with multi-layer application, the composition remains elastic.
Alkyd enamel PF-115 is compatible with any tools for painting:
The fastest application is provided by pneumatic or electric spray.
Brush is slowest. When spraying enamel, more solvent is added so that the nozzle of the paint gun can create a normal spray pattern. The degree of dilution with white spirit or solvent may differ from manufacturer to manufacturer, as well as the shelf life of the paint. Information on this can be found on the back of the enamel jar. The use of a roller provides a high speed of work, but it is accompanied by an increased consumption of material.
The light transmission of different colors is different, so in some cases it is enough 2 layers of enamel, and in others from 3 or more. For this reason, the actual consumption of PF-115 of different shades may differ by 4 times. This largely depends on the color of the base itself, which is painted. In the presence of a primer of a suitable shade, paint consumption is reduced.
Technical data on the consumption of PF-115 per 1 m2 (depending on its color, with one-layer application).
|Color||Consumption in kg per 1 m2|
|Black|| 0.05- 0. |
|Brown|| 0. |
As you can see, the most economical in terms of applying is black paint. Selecting red requires 200 g / m2.
The calculation proposed in the table shows the consumption for one layer application. The actual cost of enamel will depend on how many times it is coated. A more accurate calculation can be made according to the formula, multiplying the flow rate indicated in the table by the number of layers and coefficient 0.9.
The presence of a coefficient in the formula is due to the fact that each new layer is less consumable of the previous one.
When planning to use PF-115 enamel, you need to take into account that painting work will take a lot of time. The fact is that the break between layers should be 24 hours at room temperature. That is, re-staining occurs after the previous coat has completely dried.
Quite naturally, that different materials require different amounts of paint applied. In this regard, the most popular painting schemes should be considered, the observance of which allows you to achieve the maximum operational and protective properties of the decorative surface.
To achieve maximum performance properties of the coating, all painting conditions must be met. The sequence of actions is as follows:
Step 1. We clean the surface from dirt, grease, dust and other layers.
Step 2. Dry the surface at necessity.
Step 3. We treat with antiseptics (if it is a tree or mineral base) or a primer, in the case of metal.
Step 4. Stir the paint, if necessary with the addition of a solvent.
Color in 2 -3 layers at intervals of 24 hours.
All types of metal, be it steel, cast iron, aluminum or copper, are painted only on top of a previously applied primer. It can be used as GF O119, VL O5, GF O21 and similar compositions. Primers compatible with the enamel are named "O". It is allowed to use PF-115 without soil on irresponsible surfaces, operated in dry conditions at normal temperatures.
With this solution, the first layer of enamel is diluted with white spirit in the ratio 50%. The liquid composition penetrates into depressions on the metal surface, and after curing, creates a good basis for normal adhesion of subsequent layers.
Application of PF-115 on rusty surfaces is not allowed. Corrosion deposits must be treated with special rust converters. Such chemicals are applied only after cleaning from scale and dirt.
This is done with a metal brush or angle grinder. After chemical interaction, the products of corrosion turn into a solid base, which can become the basis for coloring. Enamel can be applied to metal by any technical means. Optimal is 2 layers excluding primer.
The surface of the wood is painted with enamel without using a primer.
Optimum is 2-3 layers of paint. This amount is due to the property of wood to absorb moisture. Ideally, pre-treat with antiseptic and fungicidal agents. You need to make sure they are compatible. Most of these formulations are designed specifically for acrylic paints.
When combined with alkyd enamels, the latter swell. The use of pre-impregnations reduces the moisture absorption of the wood. This reduces the actual paint consumption.
Pay attention! If it is necessary to achieve high smoothness of wood without protruding pile, after applying and hardening of the first layer, light sanding of the surface is allowed. In the future, the treated area is dedusted and stained 2 more times.
In this case, it is necessary to observe a technological pause between them for drying.
This enamel is suitable for coating brickwork, aerated concrete, concrete and renders. In this case, it is applied without priming. Apply 2-3 coats. As with wood, it is advisable to use a mold prevention product.
The resulting decorative surface has low vapor permeability, therefore, residual moisture in the mineral material itself can cause mold. As a result of damage to the base, the paint will begin to crumble. The preliminary use of impregnations is especially important for old surfaces in which there are pest spores.
When applying PF-115 on a mineral surface, it is necessary so that its residual moisture is to 15%. Fresh concrete, renders and brickwork should be painted no earlier than 6 months from the date of completion of construction.
The interval between layers is also from 24 hours. To ensure high adhesion of the enamel, the surface to be treated must be free from dust.
The enamel PF-115 supplied in the factory can is ready to use. It doesn't need to be dissolved. However, during long-term storage, its solvents may evaporate.
As a result, the composition becomes thick.To restore its fluidity, a white spirit solvent or solvent is used. The use of gasoline and kerosene instead of them is undesirable, since this changes the shade of the enamel and the degree of gloss.
After opening a jar with enamel, its contents must be thoroughly mixed. The formation of a dried crust on the surface of the paint is allowed.
If you use a hand tool, you can leave it. For the sprayer, the paint mixed with the crust must be further filtered. The thick pigment of the enamel settles down during storage, so when mixing it is necessary to pay special attention to dissolving the thick suspension at the bottom. The solvent is added in several passes. In the process, the paint particles settle, so it must be mixed periodically.
Many manufacturers are engaged in the production of PF-115. Some of them are guided by the requirements of GOST, while others make paint according to TU. Among the popular brands are:
The technical characteristics of this brand provide increased decorative properties. It has good adhesion.
As a result of its application, a glossy surface is formed. Shelf life of paint Lacra up to 5 years. There is only white in the range of matt surfaces.
Optimum differs from other paints by accelerated drying approximately in 5-7 hours. Despite this, the next coat is still applied after 24 hours.
The service life of painted surfaces is 18 months. Most often used for interior decoration.
Gives a semi-matte sheen. The treated surface can be repeatedly cleaned from dirt using water and detergents. After hardening, the composition has a high resistance to removal, even with solvents.
Several brands produce enamel with dung BIO. Biological additives are added to its composition, preventing the development of bacteria, viruses and fungi. This enamel belongs to the class of new paints and varnishes. It is used for painting walls, ceilings, windows and doors. It is recommended for internal repairs in medical institutions, kindergartens, schools, etc.
The guaranteed shelf life of enamel due to the presence of bioadditives is 12 months.
Mixing of PF-115 enamel with other coloring agents is not allowed.If necessary, you can mix pentaphthalic paints of different colors to achieve the desired shade. When choosing this composition for updating previously painted products, it is necessary to take into account what kind of enamel they were covered with. If the new layer of paint is incompatible with the old one, cracking, swelling and peeling of the fresh coating will occur.
Pay attention to the amazing reflective paint with its unique properties!
As you can see, PF-115 is unsuitable for coating surfaces with previously applied alkyd-acrylic, alkyd-urethane, melamine, urea, polyurethane and perchlorovinyl paint. PF-115 is a universal composition, but it cannot be called the best in all respects. The enamel creates good adhesion and color depth only if the application technology is followed with pauses between layers and preliminary surface preparation.
Posted By: Work Style |10, Nov 2020
Posted By: Work Style |09, Nov 2020
Posted By: Work Style |08, Nov 2020
Posted By: Work Style |08, Nov 2020
Posted By: Work Style |08, Nov 2020