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Defens

DEFENS AL.ST-11 (1K) Alkyd-Styrene Enamel

Specifications

Used as a finishing weather-resistant coating for general purposes with good gloss and elasticity for painting external and internal surfaces of steel, concrete, and galvanized structures exposed to moderately aggressive environments. The formed coating has resistance to saltwater, mineral oils, and sunlight.

It is also used for painting rolling stock of railway transport, containers for automotive and marine transport, metal and reinforced concrete construction, as well as other objects operated in conditions of moderate corrosion impact from the atmospheric environment.

Recommended as a finishing layer on epoxy, polyurethane, and alkyd-modified materials.

The service life of the coating is at least 6 years, provided that the surface is properly prepared and primed.

It can be applied by air and airless spraying, as well as with a roller and brush. Due to the low toxicity of the solvents contained in it, the enamel is convenient to apply. Coloring in any color at the request of the customer according to the RAL scale is possible.

Requirements for the substrate

Steel and galvanized surfaces. The material is applied to a previously cleaned, degreased, painted, or primed steel surface according to the manufacturer’s recommendations or a pre-prepared (degreased) galvanized surface.

Previously painted surfaces suitable for repainting. Remove contaminants (e.g., grease and salts) that interfere. Surfaces must be dry and clean. Old surfaces with paint that has exceeded the maximum time for applying the next layer must be sanded to roughness. Damaged areas of the surface must be treated according to the substrate preparation and maintenance instructions. The location and timing of the surface preparation for painting should be chosen so that the treated surface remains dry and clean until the next stage of painting the product begins.

Application

Before application, the enamel should be thoroughly mixed for at least 5 minutes until a homogeneous consistency appears. Apply to the prepared substrate by air and airless spraying, with a brush, or roller. To obtain the material of the required working viscosity, the addition of a mixing solvent (solvent, white spirit) is possible. When working with enamels in low-temperature conditions, it is recommended to use easily volatile solvents (R-646, R-647). The surface to be painted should be dry and have a temperature at least 3 °C above the dew point. The recommended number of layers is 1-2. Work should be carried out in accordance with the ISO 12944-7:2017 standard.

Packaging and storage

The paint should be stored in a tightly closed container, protecting it from moisture and direct sunlight, away from heat sources, at a temperature from -20 to +30°C. The warranty storage period is 12 months from the date of manufacture without violating storage conditions. Minor delamination is permissible during prolonged storage, which does not affect the quality of the material.

Cleaning of tools

Working tools and equipment should be rinsed with solvent or xylene immediately after use.

Safety measures

This product is intended for professional use only in industrial facilities according to the recommendations provided here, as well as safety instructions provided to customers along with the containers containing the paint. All work, including the application and use of the product, must comply with health, safety, and environmental protection requirements, all regional standards and instructions.When carrying out painting work, use personal protective equipment, avoid contact with eyes, respiratory tracts, and skin. Keep away from fire.

Technical Specifications

Parameter Name and Unit of MeasurementParameter Value
Appearance of the coatingUniform glossy surface without inclusions, pimples, and pores
Mass fraction of non-volatile substances, %, not less than50
Conditional viscosity by viscometer type BZ-246 (nozzle diameter 4 mm) at temperature (200 C), sfrom 60 to 110
Density at a temperature of (20±0.5) °C, g/cm31.1-1.2
Degree of grinding, μm, no more than25
Coverage of the dried film, kg/m2, no more than0.110
Drying time to degree 3 at a temperature of (20± 2) °C, hours, no more than1.5
Bending elasticity, mm, no more than1
Impact strength, cm, not less than40
Recommended coating thickness, μm50-80
Water static action resistance at (20.0±2)°C, days, not less than3
Resistance to static action of a 3% solution of sea salt at a temperature of (20±2) °C, days, not less than2
The oriented cost of enamel for a single-layer coating with a dry layer thickness of 50 microns, kg/m², (provided that it is applied using airless spray equipment)0.150
Recommended layer80 microns
SolventXylenes

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