Product description
Nowo Metal Roof 2-K. PU Combi SB is a professional product which is made from a polyol and contains active corrosion pigments.
To be used as a primer on metal surfaces where adhesion is difficult due to rust, damage or special surfaces. Recommended as a primer under Nowo Metal 2-K. PU Combi SB for the build-up of corrosion classes. Before application, the surface must be free of contamination, dry and completely clean of dirt, moss, algae, loose rust and paint residue. Rustspots needs treatment with Nowo Metal Special Primer SB. Use Nowo Metal Cleaner before application.
Application
Suitable for single-layer coating for roof structures of steel, aluminium and galvanised surfaces that are exposed to hard wear and tear. Can be used as the top coating in epoxy and polyurethane systems. Before application, the surface must be free of contamination, dry and completely clean of dirt, moss, algae, loose rust and paint residue. Rustspots needs treatment with Nowo Metal Special Primer SB. Use Nowo Metal Cleaner before application.
Instructions: Before application, the surface must be free of contamination, dry and completely clean of dirt, moss, algae, loose rust and paint residue. Remember to stir the product thoroughly before use. Always start by applying to a small test area to ensure that the product is compatible with the surface that is to be treated.
Properties: Nowo Metal Roof 2-K. PU Combi SB has an excellent weather resistance and durability. Does not chalk and is fade resistant. Good gloss and colour retention.
Remarks: Good corrosion properties.
Technical data
Colour: RAL or NCS, or by customer request
Dry volume: without hardener: 55-65 % - with hardener: 55-65 %
Dry weight: without hardener: 70-80 % - with hardener: 70-80 %
Recommended thickness: 80-120 μm dry film
Wet film: 150-200 μm
Overhaul: 1 layer 150-200μ (Wet) - if eroded 2 layers
Theoretical coverage: at 120 μm, 5 m² per litre
Thinner: Nowo Thinner F-137
Mixing ratio: Hardener 3197 - Vol 6:1
Cleaning: Nowo Thinner F-137
Sheen (60°): Semi-matt
Storage: In tightly sealed packaging at temperatures between + 5°C and 25°C
Voc (max): 400 g/l.
Density: Without hardener: 1.40-1.60 – with hardener: 1.40-1.60
Pot-life: > 6 hours
Drying time +20°c/ 40-60% rh at 60 μm
Dust dry (iso 1517: 1973): 1-2 hours
Surface dry (iso 1517: 1973): 2-3 hours
Can be painted over: By itself, 1 hour
Safety data: See safety data sheet