I’m finishing a walnut table and am considering applying an amber shellac sealcoat followed by Tried and True Oil Varnish. Will the varnish “take” over the shellac? The shellac is dewaxed.
Thanks in advance.
I’m finishing a walnut table and am considering applying an amber shellac sealcoat followed by Tried and True Oil Varnish. Will the varnish “take” over the shellac? The shellac is dewaxed.
Thanks in advance.
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Replies
I don't see why it wouldn't. Just scuff the shellac with some fine sandpaper or some other form of abrasive before applying the poly.
Regards,
Kevin
The varnish would take even if the shellac wasn't dewaxed. . .
The T&T relies on the finish penetrating the wood surface to work. It is not a varnish inspite of it's name. It is really an oil/varnish product (polymerized linseed oil with some varnish resins added) in the same league as Watco and some other oil/varnish products. As I recall, the directions say to apply to virgin wood.
I would recommend a real varnish if you want to overcoat the shellac. Don't look for a penetrating type finish, use a film finish.
drusinak,
A agree with Howie. To elaborate, shellac forms a film, sealing off the wood. Oils penetrate the wood--that's how they protect the wood. The two work in completely different ways. If you start with shellac, it is recommended that you continue with a film-type finish (shellac, lacquer, etc.). If you use oil, use it on bare wood.
BJ
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