On most floors stains gaps buckling warping and mold are water related or moisture related problems in flooring systems.
Floor stain damaged.
You may be able to repair stains nicks and scratches.
Fold a piece of 100 grit sandpaper into a small strip and then use one.
If you are concerned about mold contaminated flooring.
5 mix up a stain to match the existing floor color.
2 vacuum the area with a shop vacuum.
Pet urine stains on wood floors pet stains can ruin wood flooring.
4 for a dark stain apply bleach or oxalic acid according to label directions to lighten the stain and then lightly sand in line with wood grain using 150 grit sandpaper.
This process usually requires testing.
Pet stains on wood floors.
I speculate that this is a water damaged rotted floor that was sanded and re finished without pulling up damaged flooring and without cleaning the area below.
3 wipe the area with mineral spirits for an oil based stain and water for a latex stain.
Stains are the toughest fix when it comes to hardwood floors.
Repair major damage if you have a charming wood piece but a major eyesore is detracting from its overall look it s time to break out the bondo all purpose filler.
If you have small areas of damage in your hardwood floors you might not have to refinish the entire floor.
If your wood has only small defects and the remainder of the wood is fine you can spot sand and stain.
Stains are deep enough into the wood that almost no amount of sanding will remove them.
We think the floor shown in the photos here was damaged by a solvent spill that was left unattended.
Bondo is an alternative to normal wood fillers preferred by many furniture restorers on hometalk.