Hardwax oil vs polyurethane
Polyurethane forms a film on top of the wood. It is tough, but when it wears through in a hallway the usual fix is sanding the whole floor. A hardwax oil penetrates the wood and leaves a thin, breathable wax layer. Traffic lanes can be cleaned and re-oiled on their own, and the repair blends in.
What we stock
Osmo Polyx-Oil is based on sunflower, soybean and thistle oils with carnauba and candelilla waxes. It is not solvent free: the standard formula contains a benzene-free mineral spirit so it can be applied, and it must be used with ventilation. Osmo lists the exact VOC content on each product's data sheet.
Where it works
Unfinished or sanded solid and engineered wood, stair treads, and cork floors. It is a natural match for the heart pine and red oak floors in older DC rowhouses and the original oak in Chevy Chase and Arlington bungalows. It is not suitable over an existing polyurethane.
Prefer not to do it yourself? Our natural oil hardwood refinishing service handles sanding, dust control and application.
Common questions
Can I put Osmo over my existing polyurethane floor?
No. Hardwax oil needs bare wood to penetrate. The existing film finish must be sanded off first.
How long before I can walk on an Osmo floor?
Osmo recommends 8 to 10 hours between coats. Light foot traffic is usually fine after the final coat dries, but the finish keeps curing for two to three weeks, so hold off on rugs and move heavy furniture carefully.