This will also even out the irregularities that may have occurred when sanding.
Fixing a blotchy stained floor.
The next step is critical.
If you re using an oil based stain scrub the surface while it s.
Wipe the brush off frequently as you work.
Clean off all dust and wet the floor with warm water.
What you are trying to do is remove as much of the stain possible.
Apply pre stain wood conditioner which makes the porosity of the whole piece more uniform.
Then the only answer isto use polyshades and just paint on the stain with the poly.
For water based stains use a lacquer thinner.
This time apply a washcoat of shellac and then the stain.
Repeat this process until you get to the desired color depth.
Then stain the entire board.
To apply liquid stripper spread it around evenly with a chip brush to create a nice thick layer.
If you need a darker glaze to cover up the blotchy areas use just the tip of a dry natural bristle brush to distribute the stain instead of wiping it off until it s an even color.
Depending on the size of the problem area you can sand it down small or use a liquid paint stripper large.
One sure way to fix a blotchy stain is to sand it off and start over.
If the surface that you have is very blotchy you need to make sure that you will remove the stain first by stripping it.
Also with plywood justmake sure you do not over sand and get into the glue from where the plies areput together this will leave the same blotchy finish.
If you do have a blotching that is not too severe then you can try and glaze it.
First strip as much of the color as possible.
This will require that you again use a.
You can also choose to sand it and even do both and just start over.
Scrub out the streaks then reapply the stain liberally.
If the surface is very blotchy you ll have to remove the stain by stripping sanding or both and start over.
If you remove too much restain that area and start over.
However applying multiple coats of stain isn t always the best way to achieve a deeper color.
A few dark spots on the floor can be fixed using lightening techniques but if your entire floor is blotchy and uneven consider a whole floor approach.
Still wet with a scotch brite pad and mineral spirits or naptha.
Start by making a test board with your chosen sealer concentration.
Wipe off the excess with a rag immediately.
Apply a wash coat of shellac and then the statement.
If i do have some spots that donot stain just sand them again and reapply the stain.
Leave the stripper for 30 minutes then scrape away following the wood grain.