Guide
Epoxy vs polyurethane industrial flooring: which one your building needs
Updated
Both are resin. They are not interchangeable, and specifying the cheaper one into the wrong building is how you buy the same floor twice.
The practical difference
- Epoxy
- Hard, rigid and very well suited to abrasion, forklift traffic and a clean, seamless, easily washed surface. The default for warehouses, workshops and light production. Less tolerant of sustained heat and thermal shock, and it can be attacked by some chemicals.
- Polyurethane
- Tougher on impact and considerably better at handling heat, thermal shock and a broader chemical range. Heavy-duty polyurethane screeds are the usual answer in food and drink production and anywhere the floor gets hot washed or steam cleaned.
Matching the system to the building
| Building or process | Usually specified |
|---|---|
| Warehouse, pallet racking, forklift traffic | Epoxy, self-smoothing |
| Engineering workshop, dry, oils present | Epoxy with a chemically resistant topcoat |
| Food or drink production, hot washdown | Polyurethane screed with coving |
| Cold store or freezer | Polyurethane, chosen for thermal movement |
| Chemical handling or bunded areas | System selected against the specific chemicals |
| Showroom or clean production | Epoxy, appearance-led finish |
Where the money changes
- Material cost: heavy-duty polyurethane screeds are the more expensive product, before you add thickness.
- Application labour: trowel-applied screeds are slower and more skill-dependent than a poured self-smoothing resin.
- Detailing: hygienic environments need coving, falls to drainage and detailing around plant, all priced by length and by item.
- Downtime: cure and return-to-service times differ by system and by temperature, which is often what decides the specification on a live site. See downtime.
The specification questions worth asking
- What exactly does this floor have to resist: which chemicals, what temperature, what impact, how is it cleaned?
- Which named system meets that, at what thickness, and what does the manufacturer data sheet say about it?
- What is the return-to-foot-traffic and return-to-full-service time at the temperature the building will actually be at?
- What is the expected life under this duty, and what does the maintenance regime look like?
Where a specification is genuinely borderline, get the manufacturer's technical department involved through the contractor. It costs nothing and it moves the risk of a wrong specification off your desk.