Oxalic acid applied to the stain will often remove it but it also ruins your floor s finish and you have to re stain and refinish the area to match the rest of your floor.
Remove dark urine stains from hardwood floors.
The heat of sanding and refinishing can bake the urine crystals into the wood and make odor and stain removal much more difficult if sanding and refinishing is done first.
It is best to avoid getting these types of stains as they are difficult to remove but if you already have black urine stains on your wood floors you can attempt to remove them without refinishing the whole area of the floor.
Hydrogen peroxide is also suitable for removing the dark stains and the lingering smell on hardwood floors.
Unless you are refinishing the entire floor you should opt for the same type of finish that remains on the rest of the hardwood.
Remove urine from hardwood floors with baking soda.
Allow the rag to sit for few hours to thoroughly remove the urine stain and odor from the hardwood floors.
Treat the affected area with a stain remover before refinishing.
Video of the day volume 0.
Repeat for longer hours if the stain is resistant.
When the color is right and the floor is completely dry apply a protective wood finish.
If you accidentally lighten the floor too much use a wood stain that matches the floor to restore the color.
Then wipe up the hydrogen peroxide area with a clean dry cloth and allow to dry.
One idea is you may sprinkle a generous amount of baking soda on the urine stain.
In many cases sanding can remove the damaged wood so the flooring can be refinished.
Simply moisten the rag or soft absorbent cloth like felt and apply to the spot.