Epoxy Terrazzo Flooring

Fluid-applied flooring systems are durable flooring installed over concrete. They are strong, easy to clean, resistant to spills, and provide coverage for large spaces. Several types of fluid-applied flooring are available including polyacrylate and polyurethane terrazzo, but epoxy systems are the most common and thus were the focus of this Common Product. Epoxy Terrazzo Flooring consists of a 1/4- to 3/8- inch polymeric veneer placed on a concrete slab. It includes multiple layers of two-part epoxy that is mixed and reacted on site.  It resembles portland cement terrazzo in appearance, but may incorporate different aggregates such as recycled glass, shells, granite, and plastic in addition to marble. Epoxy terrazzo flooring commonly requires application of a primer, which also can aid in bonding the divider strips to the sub floor. Systems can also include crack isolation membranes, and moisture membranes (for humid environments), but these were out of scope for this Common Product research.

After the resin and aggregate are mixed, poured, and allowed to cure, the surface is ground. Grout is then applied to fill voids that appear during the grinding process. Different types of sealers may then be applied including permanent film-forming sealers, typically polyurethane or epoxy, or removable film-forming sealers, typically polystyrene or acrylic. Alternatively the floor may be honed and polished before a silicate-based penetrating sealer is applied. Sealers were out of scope for this research and may add additional hazards not considered in this Common Product.

A historical version of this CP is available here: Historical: Fluid-Applied Flooring - 2015.