Purpose of paint
This brand of dye is used for marking on roads with moderate and heavy traffic.
The properties of the material make it possible to place safety lines on both asphalt and concrete surfaces with equal efficiency.
The production technology is described in the standard - AK-511 is produced in accordance with GOST R 52575-2006. It also regulates the scope of application of the material - roads of categories 1-4.
There are both white and black road paint. The first one is used for its intended purpose not only on roadways, but also in parking lots, airfields, local areas, and warehouses.
The second is used to mask or correct old markings.
Visibility of road lines in the dark is ensured by special tiny glass beads.
Red, yellow, white enamel AK 511: application features
The paint used to create road markings has evolved in its composition and technical properties since the beginning of the last century. As for color, yellow and white were historically used as the main shades for markings. They contrast best with the gray asphalt surface.
Standard enamel color AK 511
- white. However, depending on the purpose, paint is produced in yellow, red, orange, and black.
White markings are the main ones for Russian roads, so white road enamel AK 511 is universal and suitable for applying most permanent markings on the road surface. It has enough contrast to be noticeable in any weather conditions.
Yellow enamel AK 511 is suitable for marking at stops, marking areas with limited parking or, on the contrary, permitted parking. Paint is also used to improve the visibility of zebra crossings by creating alternating stripes of yellow and white when constructing pedestrian crossings.
The bright colors of AK-511 enamel - orange, red - are used to highlight the boundaries of territories for which travel is prohibited. Orange and red markings are also applied to limit speed in areas of construction and repair work, and for color duplication of road signs on asphalt surfaces. Recently, red and yellow colors have become more often used in many countries for the background of pedestrian crossings.
Main characteristics and properties of the composition
The paint is based on acrylic with the addition of special pigments, fillers, plasticizers and other modifying components.
Manufacturers indicate the following properties of enamel:
- brightness factor is well above average
- excellent visibility at any time of the day
- short drying time (up to half an hour)
- high adhesion to road surfaces
- resistance to significant temperature changes
- increased wear resistance
- excellent resistance to water, chemicals, fuels and lubricants, salts, dirt
- paint with glass beads ensures maximum visibility of markings for drivers even in the dark
- release form - containers with a volume of 20, 27 and 55 l
- , NPK "KraskaVo"
Characteristics of paint after application
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Road paint AK-511 has the following properties:
- Brightness – thanks to the combination of coloring pigments, the paint is visible on the road at any time of the day, regardless of weather conditions. Light reflection, which increases visibility, can be increased by adding special granules.
- Durability of application - the enamel has high adhesion to the surface being painted, making it quick and easy to apply.
- Wear resistance - the paint does not wear off within a year after application, depending on the nature of the road surface and the degree of vehicle load. The service life can be increased by adding fine quartz sand to the solution.
- Wash-resistant – the paint will not wash off when exposed to water, gasoline, salt and road cleaning chemicals (sodium chloride and hydroxide). The paint is resistant to temperature changes, sudden changes in weather, impacts and high loads from large vehicles.
- UV resistant – paint will not fade or crack when exposed to direct sunlight.
- Drying speed - subject to application conditions, the paint dries very quickly (within 20 minutes at an average temperature of about 20 ° C).
- Ease of application - the viscosity and fluidity of the paint allows it to be applied using all available means.
- Functionality - in some cases there is no need to use a solvent. It is possible to increase the performance properties by adding approved reagents.
Technical parameters of the material
Before starting work, you should read the manufacturer’s accompanying documentation, which indicates the following characteristics:
- the paint forms a uniform, dense and smooth coating without foreign impurities
- The dry residue in the composition of the product is 75%
- surface adhesion indicator - 1 b
- viscosity from 80 to 160 s (measurements were carried out at a temperature of +20 degrees Celsius with a VZ-246 type viscometer)
- brightness coefficient - 0.7
- complete hardening time of the paint - 0.5 hours (at a temperature of +20 degrees Celsius)
- composition density - 1.4 g/cm2
- grinding index - 70 µm
- light fastness - 8 hours
- no reaction to exposure to water - 3 days, saline solution - 3 days, gasoline - 20 minutes
Paint AK-511
Enamel AK-511 (paint AK-511) GOST R 52575-2006 paint for road markings. This enamel is used to apply warning markings on concrete and asphalt roads and parking lots, and horizontal markings on roadways.
The use of AK-511 road enamel is possible on asphalt concrete and cement concrete general purpose roads in accordance with GOST 23457 and GOST 13508.
The AK-511 paint base is a suspension of fillers and pigments in a solution of organic solvents and acrylic copolymer.
Technical characteristics of AK-511 enamel
Name of indicators GOST R requirements 1. Appearance of the coating Homogeneous, matte, without foreign inclusions. 2. Coating color White, shade is not standardized 3. Brightness coefficient of the dried paint film 70-79 4. Density g/cm?, not less than 1.4-1.6 5. Conditional viscosity of enamel according to a viscometer type VZ-246 (or VZ -4) with a nozzle diameter of 4 mm at a temperature of (20±0.5)? C, pp., 40-119 6. Mass fraction of non-volatile substances, % 70-79 7. Degree of grinding, microns, no more than 50-100 8 Drying time of the film at a temperature of (20±2)?C and a thickness of the “wet” layer of 300±30 microns, to degree 3, no more than 30 minutes 9. Resistance of the coating to static effects at a temperature of (20±2)?C, hours, no less: - water 48 hours; — 10% sodium hydroxide solution 48 10. Resistance of the coating to static effects at a temperature of (0±2)? C, h, not less than: — saturated aqueous solution of NaCl 48; — 3% NaCl solution 48 10. Adhesion, points No more than 3
AK-511 contains prescription solvents weighing no more than 5% by weight.
The enamel may also include reflective glass bead fractions ranging in size from 100 to 800 microns and weighing no more than 30% of the total mass of the enamel. The permissible consumption of glass beads when applying reflective markings is from 200 to 250 grams per square meter. At a temperature of 20 degrees, the drying time of enamel to degree 2 is no more than 30 minutes. Recommendations for the use of AK-511 enamel
AK-511 enamel must be diluted with a solvent before application. You can buy road paint complete with a thinner in order to give the solution the required working viscosity specified in the technical documentation. According to GOST R 52575-2006, AK-511 is equipped with a prescription solvent.
After adding the solvent, the mixture must be thoroughly mixed for at least 10 minutes.
It is advisable to apply markings on a dry road surface, free of dust and dirt. The recommended application temperature ranges from plus 5 to plus 30 degrees with a relative air humidity not exceeding 85%. The markings are applied using special road equipment using the air spray method. In some cases, the use of a roller and brush is applicable. Reflective glass beads are distributed over the enamel laid in several layers under pressure within 5 seconds from the moment the enamel is sprayed. In the absence of special equipment, it is permissible to pre-mix reflective glass beads directly into the enamel solution. If these recommendations are followed, the average service life of the coating is one year. Safety of AK-511 enamel
AK-511 enamel is a toxic coating.
When working with AK road paint, the use of personal protective equipment and rubber gloves is required. Do not spray enamel near open flame sources. Storage of AK-511 enamel
AK-511 enamel has a guaranteed shelf life in unopened original packaging of at least 6 months from the date of production. If the warranty period has expired, then the enamel must be checked for the relevant standard requirements. If the tests are positive, it can be used for road markings.
Color palette
The intended purpose of AK-511 paint and the production technology described in GOST do not suggest colors other than matte white.
To apply special colored road lines, a related composition, AK-511 Sprinter, is used.
It is allowed to add red, orange, yellow and black pigments to this enamel.
Composition and features
AK-511 paint is an enamel based on an acrylic copolymer, which is combined with modifying additives. The latter include solid particles of color (pigment). Along with this enamel there are xyol and toluene, which act as solvents.
Among the features of the paint are the following:
- remains visible to drivers when the road is illuminated at night;
- dries within half an hour;
- adheres well to surfaces (asphalt, concrete, etc.);
- good wear resistance;
- maintains integrity during temperature changes.
The enamel contains special glass beads that provide road markings with reflective properties. Moreover, after drying, the paint forms a semi-matte, uniform film on the asphalt.
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Basically, enamel is produced in white. Yellow, red and orange shades are also available, which have a limited area of application. In addition, this material is also available in black, used to paint over old markings.
If necessary, during production the composition is mixed with other pigments, which make it possible to obtain the desired shades. This material imposes strict requirements for storage and transportation. In particular, it is important to maintain the temperature regime and the specified humidity level.
Application technique
Marking must be applied in dry weather with humidity not exceeding 85%.
The recommended air temperature is from 5 to 30 degrees Celsius. The base should be as clean as possible from dirt, debris and dust.
Dilute the paint with acetone, toluene, butyl acetate or other substances specified in the instructions. The share of solvent is up to 15%. The use of gasoline, kerosene and water is prohibited. It is necessary to stir the paint until complete homogeneity is achieved.
If it is necessary to pause work, the container with the dye is tightly closed, and then stirred again, achieving uniform distribution of the dry residue throughout the entire volume of the mixture.
For manual application, use a roller or brush. If painting is done using a sprayer, the latter is kept at a distance of 0.2-0.3 m from the road surface.
The choice of paint supply mode depends on the brand of equipment. The marking is applied in 1-2 layers.
The approximate material consumption is 0.4-0.6 kg/m2. If necessary, glass beads are added to the composition - 0.3 kg/1m2.
After applying the markings, the roadway can be used within 30 minutes. If the air temperature is high enough, the coating will dry even earlier.
Toluene is used to remove paint residues from equipment.
Paint application conditions
Road marking paint AK-511 is applied at air temperatures of 5-35 ° C, with air humidity less than 85%. Before application, the road surface is prepared. It is dried, cleaned of sand, dirt and stains of grease and oil.
The paint is tested for viscosity. The CM is thoroughly mixed. If the material has a thick consistency, then a solvent of category “P-5A” is used. An additive in the form of quartz sand with a grain size of 0.3 mm will increase the wear resistance of the dye. In this case, the proportion of the additive to the paint mass should be 5-10%.
Road markings are applied using specialized equipment - an airless sprayer. Hand sprayers, rollers and brushes are used.
Reflective granules increase the light reflection characteristics of the coating. They are applied after a maximum of 10 seconds on top of the enamel.
If the markings on the road surface are applied in compliance with all instructions, then all the performance indicators proclaimed by the manufacturer will be guaranteed by them. But if the conditions are violated, then the period of use of the dye is also reduced. For example, road markings should not be applied in conditions of high humidity or on wet asphalt.
Storage conditions and precautions
The paint retains its quality for 6 months in the temperature range from -30 to +40 degrees.
What you should pay special attention to:
- AK-511 belongs to substances with the third hazard class. This means that the material is toxic and unsafe. The maximum permissible concentration of the product in the air is 150/50 mg/m3
- While working, be sure to use personal protective equipment - a respirator or gas mask, gloves or special protective pastes
- Avoid contact with fire
- To extinguish a paint fire, use foam or sandblasting fire extinguishers or water and asbestos cloth.
