my brother owns a company that does industrial/commercial flooring, he recommended it...iirc it's a German company
ARDEX Engineered Cements > Company Overview
ARDEX Engineered Cements
This high quality Portland cement-based product mixes with just water and readily bonds to all concrete surfaces, providing a durable, new wear surface suitable for foot, rubber-tire, and automobile traffic. ARDEX recommends the use of ARDEX CG Concrete Guard to seal and protect ARDEX CD, both interior and exterior.
Benefits:
Provides "new concrete" finish to worn concrete surfaces
Bonds as thin as 1/16" (1.6 mm)
Easy prep - no scraping, primers, or pre wetting
Portland cement-based - High strength - 4,000 psi
Mix with water only, no additives needed
Fast and easy, apply with a trowel or squeegee
Dries fast, walk on in 2 hours, drive on in 6 hours
it's an epoxy/cement mixture, trowelled on, 6 hours to dry for use...
surface prep, wire brushed, adhesive coat, then apply
looks like fresh concrete when done, I sealed it with 3 coats of water based sealer...
took less than 8 hours and $300...
easy to patch if required...very hard, difficult to scratch...I've dropped tools and not damaged it...if you apply it with a 'broom' finish, very slip resistant