I just ripped up my carpet to find that I have particle board floors underneath. The particle board is heavily stained with pet urine. Replaceing the particle board is not an option.
Is there a sealer I can use to seal in the odor? I have read that Kilz oil based will work. I have also read that only shellac will work. Do you know if either one will work or do I need to do something else?
I hate to put the new vinyl tiles in and still have the reeking smell.
I have used Kilz many times to seal in pet odors. It also comes in a water based version. It will do the job. You should still put down new 1/4 subfloor over the existing particle board before installing the vinyl tile.
There is a spray liquid I used before called Natures Miracle. It has enzymes in it to kill the odor. Aftere it dries you can put some penetrating sealer that wont make the glue release too. Maybe there is a special sealer floor pros use to keep the particle board from falling apart when you cant take it out. It might help keep the wood from swelling when water from mopping gets between the tiles. Jas
Typically it is best to first neutralize the odors with enzymes unfortunately it takes an amount of liquid enzymes that is equal to the amout of urine that caused the stain/odor in the first place - in/on particleboard this may not be the best idea.
The original Kilz product (not the waterbased) is in fact shellac and nothing more, any shellac will work equally as well and may not carry the cost of the Kilz brand name. Again unfortunately shellac is a stain-killer and not an odor eliminator, next time it rains and atmospheric moisture is in abundance the odors may reappear even after shellaced.
HOW DO I KNOW?
Been there done that! Many times using both techniques and several failures. I would run-the-risk of the enzyme application and hope it doesn't explode the particleboard.
Another Product I personally have used a lot of is the "Lees" Everseal... Clear roll on Membrain..
Done it on pet areas etc. It really seems to lock in that smell. It is non toxic and actually smells pretty good..