Before you ask, I did a Google search but didn't find exactly what I was
looking for. I just finished (nearly) a nice Arts & Craft Cherry coffee
table and there are some noticeable blotches on the top. They are not
severe and will probably fade into the background as time goes by but I was
wondering if I should have done something different.
It was finished with several applications of Tried & True Danish oil
followed by a few coats of T&T Varnish Oil. The blotchiness appeared after
the Danish oil was applied. So now my question - Is it acceptable to use a
wash coat of dewaxed Blonde shellac under the Oil or would that detract from
final appearance? I have tried it on a couple of pieces of scrap but
thought I would solicit some opinions from the more experiences finishers.
Since I have three more tables to make for the house, I would like to do a
better job on the rest of them.
Staining is NOT an option but I would appreciate any help this wise group
A long time lurker - Ron
When do you want to use the shellac? Before the Danish or before the
Varnish? I've used the shellac after danish oil, with success. Also used
it after T&T original polymerized linseed oil, with a long curing time.
I haven't tried danish oil over a shellac wash coat. It hadn't occured to
me. I have some cherry in the rack that seems to have a more open grain to
it, where that might work well. It almost seems as though it was steamed
in the drying process...
I have been able to eliminate or at least reduce blotching on cherry
by using 320 grit or finer with a ROS. Then I use a Bahco 6" cabinet
scraper. The surface should look polished with this method when
done. Scrible using a soft pencil on it's side befor scraping to see
what areas have been done if you want. (Try a small area first.) Run
the scraper with the grain and "downhill", similar to how you would
run wood thru a planer.
I also use a scraper on poly between coats but not afer the last coat.
I hold the scraper about 30 degrees from vertical and about 30 to 45
degrees to the grain. I pull the scraper and keep it bent slightly so
the corners don't dig in. Staining also is more even on a scraped
It sounds as if your blotch is sheen-related. The varnish in the
varnish oil started to give you a build coat when you stopped
applying it. Give it a few more coats and see if it evens out.
As to shellac, I'd have used it after a coat or two of the danish
oil after it had cured for a week (- month) or so if I was going to
1 Atta Boy coming your way, Ron. <clap clap clap>
- Let Exxon send their own troops -
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