I recently finished a desk with polyurethane. I applied my third and
last cost and now when I see the desk in reflected light I see streaks
in the finish, sort of resembling dull residue. I can only see it
however when I look at it with reflected light. Is there anything I can
do to fix this short of sanding the whole thing and putting another
coat of finish? I appreciate any help/advice. thanks
Were you using a semi-gloss poly? If so, it could be due to poor mixing.
So, what to do. If thats the case, it was semi. You shouldn't use semi
for your first and second coats, only your last coat. Use gloss for
first coats and semi on the last. Mix it well. Semi is made by adding
"flatteners" to the gloss.
Strip and start again.
Not to worry.!! Your problem is probably due to an "uneven" application of
your last coat of varnish. It has happened to me several times.
Another coat will probably cure the problem. But exercise some caution
before the final application. First, lightly sand to remove all traces of
"gloss". Fine sandpaper or 0000 steel wool works for me. Clean, then clean
again..............finally apply a final coat. Be sure to have a strong
light available so that you can clearly see the evenness of the varnish
Go to the bookstore. Really.
Two magazines in the past month have articles on finishing with poly. WOOD
was one, I forget the other. One tip is to wait two weeks for full curing,
then rub it out with 600 grit or rottenstone.
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