Polyurethane Floor Coating Application
You ll get the best results from your topcoat if you remove any old paint varnish or other finishes before polyurethane application.
Polyurethane floor coating application. How does the application of polyurethane floors differ from epoxy. Epoxy is an ideal product for resurfacing a concrete floor. It can build up an old cracked and pitted concrete floor and make it look brand spanking shiny and new and increase the floor s light reflectivity by as much as 300. There are also significant differences for the applicator.
Avoid wiping the brush on the rim of the can as this may introduce air bubbles. Start with 120 grit sandpaper on refinished pieces and 80 grit on new wood. Optimized drying technology results in faster recoat time between coats. If an uncured pu floor is attacked by water or condensation you may get this catastrophic results like in.
Spread the varnish over the entire surface with long even strokes. It can be applied from as little as 2mls to as much as 80 mls thick depending on the application and underlying floor surface. Apply the first coat of polyurethane. Within 24 hours of applying the seal coat brush on a coat of finish right from the can.
From an applicators point of view polyurethane floor resins are extremely sensitive to the presence of humidity. For a smooth coating you ll want the surface to be as smooth as possible so prepare the wood by sanding it with a sanding block or orbital sander.