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    RAUM-PROFIE | Industrial coatings
    ABOUT COMPANY
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      RAUM-PROFIE | Industrial coatings
      8 (4932) 773-503 8-800-2001-321
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      • Primer-enamel on metal Polytex BS

      Primer-enamel on metal Polytex BS

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      Polytex BS primer enamel is used as a self-priming anti-corrosion coating with an accelerated open time and a fast mounting strength. 

      Main fields of application:
      • engineering.

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      • Primer-enamel on metal Polytex BS
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      • Description
      • Characteristics
      • Documentation
      Description

      TU 20.30.22-008-69372620-2021

      Description

      Two component polyurethane primer-enamel, hardened by aliphatic polyisocyanate.

       

      Scope and specifics of application

      Polytex BS primer enamel is used as a self-priming anti-corrosion coating with an accelerated open time and a fast mounting strength. It is available with a different degree of gloss: from deep-matt to high-gloss, has a wide choice of color solutions. It does not require pre-priming. Thick-layer application is possible.

      It is used to paint and provide long-term anti-corrosion protection of internal and external surfaces of various vehicles: agricultural machinery, construction equipment, public transport (buses, trolleybuses, trams, etc.), railway transport, as well as other metal structures.

      Primer-enamel has increased strength, hardness, abrasion resistance and accelerated open time. It is successfully used in moderate, cold and marine climates, providing long-term protection against corrosion.

      Information on the material resistance to various media is available on request.

      Main applications: mechanical engineering.

      Instruction for use

      Metal surface should be abrasive blasted to grade 1 or 2 to GOST 9.402 (Sa 2^(1/2) or Sa 2 to ISO 8501-1:2007). Clean surface must be free from dust and grease.

      If the quality of surface preparation decreases, the service life and its operating performance may change.

      Conditions

      Two component polyurethane primer-enamel Polytex BS is applied on prepared surface, with ambient temperature from +50С to +300С and air humidity no more than 80%. Basis temperature higher than dew point no less than 3°C.

      The process of applying

      Blending
      Polyurethane primer-enamel consists of two components: component А - basis, component B - hardener. Before use, pre-mix component A with a low-speed drill with mixing nozzle, then mix with component B in stoichiometric ratio in the delivery form. Mix the resulting material thoroughly until smooth. After the hardener is added into the semi-finished product, the material should be allowed to stand for at least 5-10 minutes.
      Proportions Polytex ST hardener
      100:12 by weight
      7:1 by volume

      Polytex ST2 hardener
      100:10 by weight
      9:1 by volume
      Pot life at  200С, no less
      8 hours
      Air-free spraying
      Thinning: 0-30%
      Nozzle diameter: 0,011-0,017"
      Initial pressure: 120-160 atm
      Air spraying
      Operational viscosity:25-60 s
      Thinning: 10-35%
      Nozzle diameter:1,8-2,5 mm
      Initial pressure: 3,0-4,0 atm
      Cross linking at 200С 60 min
      Brush, roller Can be recommended for small and hard-to-reach areas. Thin the primer-enamel depending on the working conditions when using brush. 
      Thinner
      Formula thinner Polytex, Polytex SLOW.
      Cleaner
      Formula thinner  Polytex,RP-1K,RP-1KF, thinners of type Р4, Р5.
      Finishing
      Tubing, pistol and other spraying tools must be cleaned after using.
      Cleaning
      Clean straight after using due to painting equipment manual. 

      Characteristics
      Paint colour Colour list of RAL
      Density (comp. A), g / cm³ 1,25±0,15
      Density (comp. A+B), g / cm³ 1,17±0,15
      Shine, % G035: 0-35%; G3570: 35-70%; G7095: 70-95%.
      Dry residue by volume (comp. A), % 52±5
      Hardener Polytex ST, Polytex ST2
      Adhesion to metals (GOST 15140), not more than 1 point
      Maximum thickness of single layer coating without dilution 155 microns dry layer, 300 microns wet layer
      The maximum thickness of a single-layer coating at a viscosity of 40 seconds 60 microns on dry layer, 150 microns on wet layer
      Drying time to a degree of 3 at 20°C, no more (with a wet film thickness of 100 microns) 2 hours
      MDNW (component A) 57±5% (depending on the degree of gloss and colour)
      Minimum recommended dry film thickness, µm 40
      Maximum recommended dry film thickness, µm 150
      The minimum theoretical flow rate, g/m² 82
      МMaximum theoretical flow rate, g / m² 337
      Documentation
      Information_Primer - enamel Polytex_BS (01.03.2022)
      290.4 Кб
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