clueless !!!
trying to add a finish to an oak board. i sanded board down to 220. than i applied a spit coat on the board to reduce grain with a mix of (minwax lacquer) 50% and (lacquer thinner) 50%. applied with rag.
than i lightly sanded the board with 220- than applied a coat of (minwax ebony stain) looked great let dry for days. than applied with a brush a coat of minwax clear lacquer to the board and in a few seconds i noticed the stain getting lighter where i was brushing, it started to pull out the stain …
the only thing i can figure is the minwax ebony stain i used may be quite old. ???
does anyone have an idea why this is happening ???
thanks in advance !
Replies
Stains use a binder to hold the pigment in place on the surface of the board; the lacquer is simply dissolving the binder allowing the pigment to combine with the lacquer or move onto the brush. The only way to use lacquer over such a heavily pigmented stain is to spray it on. If you don't have a compressor and spray equipment, rattle-cans of clear lacquer can do a fine job of coating that dark ebony stain.
Roland J.
Hi Roland,
Between you and Rob A I can sit back and enjoy.
PG
fw,
What you did was inhibit the the penetration of the stain by putting the 5050 washcoat on. That type of product is meant to penetrate not sit on the sealed surface. The pigment is sitting right there on the surface and the solvent in the lacquer had an easy time activating it and removing it.
If you can give it a mist coat of lacquer from an aerosol can or spray gun(as Roland said) after you've stained it, you may just be able to lock it down. Once it is sealed in you can then lay more lacquer on as required.
Another possibility is to use a light coat of shellac. You also need to use a light touch here as the alcohol in the shellac can have the same effect.
Just remember when brushing lacquer; it is not like a varnish that produces layers of finish. The lacquer and shellac melt or burn into itself with each application. When you apply it by brush don't over brush it. Lay down a thin coat with as little brush work as possible.
Good luck.
Peter
thankyou !
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