How Do I Choose a PU Coating for My Floor?

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A PU floor coating is chosen by matching the product’s resin chemistry and finish to the substrate, traffic level and exposure conditions of the area. Aliphatic polyurethane systems are typically preferred where UV resistance and colour stability matter, while anti-slip additives or textured finishes suit wet or ramped zones. Substrate preparation and primer compatibility also affect adhesion, so the selection should account for concrete, tiles, fibreglass, plastic or prepared steel before application.

How Do I Choose a PU Coating for My Floor?

Choosing the right PU coating is less about finding a single best product and more about narrowing down the conditions your floor will actually face. Once you know whether the space is indoors or outdoors, damp or dry, and lightly used or driven on, the specification becomes much clearer.

Start with substrate compatibility

The first filter is what the floor is made from. A PU coating that bonds well to concrete may not be the right choice for tiles or fibreglass without proper preparation. Check the product data before buying and confirm it lists your surface type. For example, the “Prolux” PU coating is formulated for concrete, fibreglass, ceramic, plastic and properly prepared steel.

Surface preparation matters just as much as the coating itself. Old paint, dust or glossy residues can reduce adhesion. A suitable scraper can help remove loose paint or dry resin before cleaning and priming.

Match performance to the space

Think about how the floor will be used. Areas with regular foot traffic, trolleys or vehicles need a tougher film than a rarely used store room. If the floor is exposed to sunlight or skylights, look for a coating with UV resistance to reduce yellowing and colour shift. The Prolux system is described as resistant to UV, yellowing, abrasion and weathering, which suits exposed or high-traffic locations.

Dry indoor floors: a standard gloss or satin PU finish may be enough.
Wet or exterior zones: ask about anti-slip treatment or a textured finish.
Driveable surfaces: check the coating is rated for mechanical stress and vehicle use.

When this matters

This decision becomes particularly important when a floor has to perform in more than one way. A garage or covered parking area may need UV stability, abrasion resistance and a finish that can be cleaned without dulling. A balcony or pool surround may need anti-slip properties and weathering resistance. If you skip this assessment, you can end up with a coating that looks good initially but fails early in the areas that matter most.

Related guides

Once the right PU coating is in place, routine care usually involves sweeping and damp mopping with a compatible cleaner. For more on keeping coated and painted floors in good condition, see the main guide on cleaning painted floors.