Polyurethane floors for kitchens, food plants and cold rooms

When boiling water hits the floor at the end of every shift, or a freezer door opens onto a warm corridor all day, a thin epoxy coat is on borrowed time. Polyurethane cement is a thick, trowelled screed made for those places. It is what we specify where heat, water and hygiene all land on the same floor.

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Food-prep room with stainless benches, a slot drain and a matte textured grey floor coved up to the wall

Epoxy coating or polyurethane cement?

Built from two manufacturer data sheets: a widely sold South African floor epoxy and a polyurethane cement screed from the same maker. Other brands differ in detail; the pattern holds.

	Floor epoxy	Polyurethane cement
Heat it is built for	About 50 °C dry heat continuously; occasional steam up to about 80 °C in a thick broadcast build	Areas with temperature shock: hot washdown, ovens, chillers and freezers
Typical thickness	A fraction of a millimetre to a few millimetres	6 to 9 mm as a wearing coat
Look	Gloss or satin, wide colour choice	Matt, a handful of solid colours
Damp concrete	Needs about 4% moisture or less, or a separate barrier	Can go on damp concrete above 4%, as long as no water is pooling or rising
Food areas	Depends on product	Non-tainting; wait at least 48 hours before food comes in

Where we put it

Commercial kitchens

Hot fat, boiling water from the pot-wash and constant mopping. The screed curves up onto the wall, leaving no skirting joint to trap grime, and it falls to the drains.

Cold rooms and freezer thresholds

The material moves with temperature much like concrete does, which helps it stay bonded where cold-room floors meet warm loading areas.

Wet production and bottling

Breweries, dairies, butcheries and beverage lines that are hosed all day. Damp slabs that would stop an epoxy job can usually take this screed, provided no water is pooling or rising.

Laying it in Durban's climate

Polyurethane cement tolerates damp concrete better than epoxy, but not damp air. Its data sheet still sets 80% relative humidity as the upper limit and asks for the slab to stay 3 °C clear of the dew point. With Durban averaging 80% humidity through the first three months of the year, a summer kitchen job is planned around the extraction fans and air conditioning as much as the calendar.

The finish is matt, and like most resin floors it can shift colour slightly under strong direct sun. Indoors that rarely matters; we mention it for loading bays with open roller doors.

Choosing between our floor systems

If the floor stays dry and the heat stays off it, a standard industrial epoxy system costs less and offers more colours. One site can use both: polyurethane cement in the production room, epoxy in the stores and passages.

We visit factories in Pinetown and its industrial parks and restaurant and hotel kitchens up the coast to Ballito.

Polyurethane cement is a premium system and is always quoted after a site visit; the pricing guide explains what drives the cost.

Polyurethane floor questions

It can be, with planning. The time depends on the floor area and on what has to come up first, which we confirm at the site visit. Build in the cure as well: the data sheet we work from asks for at least 48 hours after application before food is placed in the area.

The manufacturer says not to scrub it with water for the first three days. In slow curing conditions the surface can also pick up dirt when people first walk on it; a dry mop or cloth removes that.

The polyurethane cement we checked is water-based and listed as odourless and non-tainting, which is why it is used where food is made and stored. Primers and any other products on the job have their own data sheets, and we ventilate regardless.

The trowel-grade screed we checked is described by its maker as having high slip resistance, with a matt face rather than a gloss one. Employers must keep work floors skid-free under the General Safety Regulations, so tell us what ends up on the floor and we will match the texture to it.