The best floor sealer for pet urine is a stain blocking primer such as kilz 3 premium interior exterior primer which not only blocks stains and odors but also contains a mildewcide.
Sealant for chipboard flooring.
Bathroom flooring grade chipboard usuaully with a faint green stain will not rot when it gets wet but it will probably still soak up piss and smell.
Hardie doesn t add strength to the floor as hardie recommend via a formula a maximum allowable deflection to allow hardie to be used on the floor.
Let the sealer dry thoroughly.
What you may.
Seal the floor using granfix acrylic bonding agent and allow it to dry.
My bathroom has been completely refurbished and installed the chipboard floor extremely rotten so was replaced with chipboard.
Apply sealant with a paint brush to all sheets of the particle board on the floor making sure to have even coverage of the face on each sheet.
What is the best way to waterproof chipboard flooring.
If your floor passes the two fat men test proceed as follows.
Grout with granfix maxigrout flexible in your choice of colour.
I would have ideally liked to have had proper ptg boards but as i only had 1 day i had to get the bathroom fitter to fit it with crappy chipboard flooring again.
Abrade sand the floor to remove wax dirt etc especially with green chipboard.
Chipboard fails when it is wet and stays wet.
Work from one end of the room to the other moving backward as you apply sealant.
Just getting wet from adhesive won t blow it.
Apply a subfloor sealer.
Set pva is water soluble so that won t work.
Any all purpose oil or water based stain blocking primer will work especially if you apply two or three coats.