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Asked by: Arusyak Oetjen
hobbies and interests woodworkingCan you seal prefinished hardwood floors?
Thereof, can you polyurethane over prefinished hardwood flooring?
In general, you shouldn't apply polyurethane over a floor that has already been stained and sealed with other products. If the manufacturer indicates that the floor has been treated with polyurethane but you want to apply additional coats for added protection, you may do so after the floor has been installed.
Moreover, how long do prefinished hardwood floors last?
3-5 years
Prefinished flooring is factory-finished, and thus each board has been finished individually with sprayed-on coats of polyurethane. The boards are then oven baked with aluminum oxide to create an extremely hard acrylic finish.