Epoxy floors are harder, more durable and have a much higher compression strength than polyurethanes. This is why they are the preferred choice for heavy duty industries, warehouses and logistics centers with heavy forklift traffic. Polyurethane floors are usually softer and more elastic.
The main difference between this type of material and the epoxy systems is in the molecular structure of the two, which affects how the molecules fuse together during the curing process. Essentially, polyurethanes have a higher cross-link density than epoxies, making them more durable.