A polyurethane topcoat is a clear or pigmented final layer applied over a floor coating to add UV stability, scratch resistance, and gloss control.
Understanding Polyurethane Topcoats
Polyurethane forms a tougher, more flexible film than most epoxies and holds color better in light. Aliphatic versions resist yellowing, which is why they are the usual choice over epoxy base coats.
Why Use One
An epoxy base gives strength and bond. The topcoat adds abrasion resistance, chemical resistance, UV stability, and the sheen the customer sees. It also makes the floor easier to clean.
Gloss and Texture Options
Topcoats come in gloss, satin, and matte. Many installers add a fine non-slip additive to the final coat for traction in wet or oily areas.
Practical Tips
Respect the recoat window so the topcoat bonds to the layer below. Apply in thin, even coats and keep the area free of dust, bugs, and moisture while it cures.
