Re: Polyurethane Stain old cabinets?
I am not a fan of poly/stain blends because most of the color is in the finish, not the wood, which means that any scratches, chips, or damage to the finish results in removing the color as well. A much better way is to stain first, then apply your clear finish.
Other than time and sunlight, I don't know of a means to darken prefinished materials. Wiping stain on won't work because the stain cannot get to the wood to do it's job. A poly/stain might do a little, but as previously mentioned, this is only a topical coloration and without direct contact with bare wood, the stain can't do it's job.
Tip: Stay away from Minwax polyurethane products! They are extremely low quality, hard to work with, and result in poor finish quality. Their stains are great, it's the poly's that are in question. You'll fair much better with McKloskies or General Finishes brands of poly.
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