If your stain looks blotchy or uneven on your floors, it was probably caused by poor application technique or poor wood preparation. If your floors have not yet been coated with lacquer or varnish, or have already been stripped of any topcoat, you can even out the stain by sanding and then applying more stain. Stain absorbs into wood at different rates depending on how the surface is prepared. To even out stain colors, the sanding of the floor must be consistent.
Get down on your hands and knees. Use an orbital electric sander or a handheld oscillating sander with 100-grit sandpaper to sand over the floor lightly. Sand forward six inches and back five inches always moving parallel with the grain of the wood. Sand over the floor completely; try to move consistently as possible.
Dip a sponge into an open can of stain. Moving as fast as possible, completely wet the floor with stain and then wipe the stain off as fast as you can with a soft, dry cloth. Let the stain dry for 30 minutes.
Wipe the floor with a soft cloth dampened with acetone if your floor still looks uneven. Focus on blotchy or darker areas. Blend the edges of uneven areas into lighter areas. Wipe harder on darker areas to lighten the stain to match existing lighter areas. Let the stain dry for 30 minutes.
Wipe the floor down again with an acetone dampened cloth if you can still see uneven colors. Repeat if necessary until the color evens out.
Tips & Warnings
- Try to match your stain color as close as possible to the existing stain already on the floor. If you have a choice, use a slightly darker color. It will hide and even out previously bad staining jobs.
- Always wear breathing and eye protection when working with sanders or wood finishing products. Always use only in well-ventilated areas.
Things You'll Need:
- Orbital sander or oscillating sander
- 100-grit sandpaper
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