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jah5446
Residue Precipitating from wood between stain and poly

I have been been refininshing 30-year old wood (pine)trim in my home. I sanded off the dark finish to bare wood. The finish was moderately difficult to remove. I then stained with a natural colored stain. Before I could apply a polyurethane I had a white residue precipitate out of the wood. It is slightly crystalline and powdery looking, much like a carbonate mineral. I have tried several removal products, mineral spirits, and more sanding. The sanding seems most effective, however, it gums up paper very rapidly. Does anyone know what this may be?

Faron
Re: Residue Precipitating from wood between stain and poly

Hello JAH,

You mentioned use of some "removal products".
Which ones?
* Many require a neutralizing step, and/or rinse.
* This is the most likely cause...double-check the instructions.
* Was the stain itself water-based or Oil?
* How 'bout the actual Poly? H20 or Oil....

Faron

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