Polyurethane top coat

  • Corrosion protective
  • 2-component
  • Solvent-borne
  • Single coat paint
  • Topcoat

TEKNODUR STRUCTURE 3615 semi gloss and structured two pack polyurethane paint with an aliphatic polyisocyanate as a hardener.

The paint can be used as a topcoat in polyurethane coating systems in combination with a primer. With an appropriate surface preparation (SA2½, FePho, ZnPho) it can also be used as one layer coating system.

Low solvent content. Quick drying. Excellent adhesion on smooth and blasted steel substrates. When used as one layer coating an effective corrosion protection can be achieved. Structured surface easy achievable by using common applications techniques.

Surface preparation

Remove from the surface any contaminants that might be detrimental to surface preparation and coating. Remove also water-soluble salts by using appropriate methods. The surface should be prepared as follows: STEEL SURFACES: Remove mill scale and rust by blast cleaning to preparation grade Sa 2½ (standard ISO 8501-1). Roughening the surface of thin-plate improves the adhesion of the paint to the substrate. ZINC SURFACES: Hot-dip-galvanized steel structures that are exposed to atmospheric corrosion can be painted if the surfaces are sweep blast-cleaned (SaS) till matt all over. Suitable cleaning agents are, e.g. aluminium oxide and natural sand. It is not recommended to paint galvanized objects that are subjected to immersion strain. It is recommended that new zinc-coated thin-plate structures are treated with sweep blast-cleaning (SaS). Surfaces that have been weathered to matt can be treated also with PELTIPESU Cleaning Agent. OLD PAINTED SURFACES SUITABLE FOR OVERCOATING: Any impurities that might be detrimental to the application of paint (e.g. grease and salts) are to be removed. The surface must be dry and clean. Old, painted surfaces that have exceeded the maximum overcoating time are to be roughened as well. Damaged parts are prepared in accordance with the requirements of the substrate and the maintenance coating.
Solids abt. 52 % by volume
Total mass of solids abt. 1050 g/l
Weight solids abt. 70 % by weight
Volatile organic compound (VOC) abt. 440 g/l
Pot life 4 h (+23 °C)
Mixing ratio 6,5:1 by volume (comp. A : comp. B)
Hardener Comp. B: TEKNODUR HARDENER 7255
Gloss Semi-gloss
Tinting system Teknotint
Drying time – dust free after 30 min
Drying time – touch dry after 1.5 h
Drying time - overcoatable After min. 3 h / max. 1 month
Thinner TEKNOSOLV 6740
Clean up TEKNOSOLV 6740