FORTIS PRIME 520 water based polyurethane.
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Fortis Prime 520 is a clear, two-part primer that’s water-based and easy to apply. It’s perfect for sealing and prepping porous surfaces like concrete and timber. This primer helps improve the adhesion of topcoats, making your finish last longer and perform better. Whether you're working on a residential or commercial project, Fortis Prime 520 is a reliable choice to ensure your surfaces are properly prepared for coating.
2 Component Water-based Polyurethane
Non-yellowing Medium build Water-based two-pack Exterior / Interior use Low odour Excellent adhesion to siliceous and most polar compounds Chemically resistant Cures well in humid or cold conditions
Use a Jiffy Mixer or similar with a variable speed drill, according to the manufacturer’s recommendations. Add the hardener slowly and evenly into the mixing vortex in the resin component, while maintaining a constant mixing speed throughout the addition. Avoid entraining air. Continue mixing for a minimum of three minutes. Proper mixing of the viscous hardener into the low viscosity resin component is essential to achieve proper coating properties. Filter before use. Mixed product has a pot life of 2 hours at 25°C.
For new wood and fully sanded old timber surfaces, final sand with 220 grit sandpaper.
For concrete surfaces, best results are obtained from diamond-grinding or sanding. If diamond grinding or sanding is not possible, acid etching may be used. Apply 1 - 2 coats of FORTIS PRIME 520, followed by 1 or 2 coats of FORTIS COAT 526 Gloss or Satin depending on required finish.
5L
Fortis Prime 520 Pt.A - Safety Data Sheet
Fortis Prime 520 Pt.B - Safety Data Sheet
