My wife and I just purchased a home with Oak floors
throughout...previously this home was a rental property and there was
carpet all over the place...we tore up the carpet and to our surprise
the floor upstatirs and in the dining room was in great shape...that
sensational feeling was reduced when we saw the floor in the living
room...OH MY GOD!!! Obviously these folks had several dogs or very
weak bladders...so now my dilema is this...I need to know of the most
effective way to get rid of those stains from the floors.
Oak is high in tannins and they react with acids to form a black stain.
Suggest prior to commiting to sanding check pet stores for suggestions or look
for wood bleach containing Oxalic Acid which reversed black stains in oak
caused by acids. Probably Oxalic Acid will work better with surface finish
sanded off over stain.
Nospambob is correct, the tannins react to the iron in the water whether it
comes through a planter or a pet. This is exactly the advice I got here a
few years ago when I had the same stains. Wood bleach will work, but dont
expect a miracle, be patient and multuple applications will probably be
A concentrated solution of oxalic acid will remove the stains. It is
sometimes called "wood bleach". Make sure you read what the ingredients are
since a two pack caustic and peroxide product is also called wood bleach.
Never going to get the grey urine stains out 24 years in the buisness I
know you need to change the planks!
http://allhardwoodfloor.com A concentrated solution of oxalic acid
will remove the stains. It
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