why apply polyurethane on hardwood floors
Penetrating oil is more durable. The key difference between penetrating oil and polyurethane is how the finish interacts with the hardwood floor. Polyurethane finish systems are applied on top of a wood floor. This creates a âwear layerâ that people, pets, and furniture stand on top of. On the other hand, penetrating oil actually incorporates itself into the wood. Certain penetrating oils also contain hardening agents.