epoxyover

Epoxyover is a term used in coatings practice to describe the application of an epoxy resin system over an existing substrate to create a protective, chemically resistant overlay. It is not a single product, but a technique described in manufacturer literature and industry guides for applying epoxy-based overlays to concrete, metal, wood, and composite materials.

Epoxy resins are two-component systems consisting of a resin and a hardener. When mixed, they undergo cross-linking to form a durable, tough polymer network. Epoxyover overlays rely on proper substrate preparation, surface priming, and the use of compatible hardeners and additives to optimize adhesion, flow, and curing.

Common applications include industrial and commercial floor coatings, marine decks, cabinetry tops, and repair overlays on damaged structures. Films are typically applied by roller, brush, squeegee, or spray and can be built up in multiple coats to achieve desired thickness. Curing temperatures, humidity, and film thickness influence cure time and final properties.

Surface preparation is essential. Substrates should be clean, dry, and mechanically prepared to create a rough profile for better adhesion. Porous concrete may require etching or grinding and moisture testing; metal surfaces require rust removal and priming; wood should be sound and dry. Overlays may incorporate pigments, fillers, or slip-resistant aggregates.

Advantages of epoxyover include strong adhesion, chemical and abrasion resistance, and low permeability. Limitations include potential UV sensitivity without UV-stable topcoats, brittleness in very thick films, and vulnerability to moisture entrapment during cure. Proper ventilation, PPE, and following manufacturer instructions are recommended.