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Self-Leveling Urethane UltraCrete™ 3KPU

Fortis UltraCrete™ 3KPU is our urethane-based system is a heavy-duty seamless resurfacer that provides exceptional durability and service.

Polymer Concrete Coated with Fortis Epoxy


UltraCrete™ 3KPU is our 2 or 3 component trowel-applied cementitious polyurethane that is applied in thicknesses ranging from a 5mm to 20mm. Ideal for resurfacing of food processing areas, commercial kitchens or eroded factory floors. UltraCrete™ 3KPU is chemical resistant and able to withstand thermal shock from spills, high-temperature washdown. It gets you back up and running quickly and meet the demands of your operation.


Composite Polyurethane


  • 100% Solids (Made from 80% renewables)
  • Self Levelling
  • Fast return to service
  • chemical resistant 

Construction, Concrete, Industrial & Mining


Application of UltraCrete™ 3KPU polyurethane flooring should take place after priming but within 24 hours.


Mix Components A (resin) and B (hardener) in the predetermined mixing proportions provided. Stir the for approx. 3 minutes with a low-revolution (300 rpm) mixer. It is important that stirring reaches the wall and bottom of the container as well, to achieve uniform dispersion of the hardener. Add the 3rd Component to obtain a uniform polyurethane mortar.

For a Smooth Final Surface:

Spread UltraCrete™ 3KPU  with a notched trowel at a thickness up to 30mm. To remove any air trapped in the self-levelling layer, the surface should be gone over with a special spiked roller. This inhibits the formation of bubbles.

For a slip-resistant Final Surface: 

Whilst the coating is still-fresh sprinkle with quartz sand, grade 0,1-0,4 mm or 0,4-0,8 mm, depending on the desired slip resistance at a rate of 3 kg/m2. Remove excess loose sand once UltraCrete™ 3KPU has hardened. Seal with a coat of FORTIS COAT 527 or UltraSpart in the desired colour.


The surface on which the UltraCrete™ 3KPU coating is going to be applied must be dry (<4% moisture), stable, free of dust, loose particles, grease.  The substrate must be properly prepared. Refer to Technical Note #4 - Surface Preparation, to open the pores to allow penetration of the primer and ensure better anchoring and bonding of the polyurethane coating. Subsequently, the surface should be carefully cleaned with a high suction vacuum cleaner. The properly prepared surface (as described above) is then primed with HydroFort™ Primer.

2 or 3 component
Extremely low
Working Time
Cure Time
Foot traffic in < 24hrs
Pack Sizes