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  1. 6th September 2022, 11:33 AM #1
    Dengue
    Dengue is offline GOLD MEMBER
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    Default Shellac as a sanding sealer - then what?

    I have sanded back the scratched top of a pine dresser to bare timber, and now want to apply oil based Cabots ‘Jarrah Stain and Varnish’ to match the rest of the dresser.

    I am aware that when applied to pine, this stuff can result in a blotchy finish, will be absorbed in some areas, and sit on the top of others.

    Have painted the bare timber with a #1 cut shellac. What happens next?

    Do I lightly sand the shellac off, leaving the grain holes filled with shellac, or do I apply the varnish straight on top of the shellac?

    LATE NEWS: After the one coat of shellac dried, I found the surface was rough with raised grain, so it needs to be denibbed with 1200 grit paper.
    Do I sand it any further?
    The question still remains, can the oil based varnish be applied to shellac?
    regards,

    Dengy
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  3. 6th September 2022, 01:58 PM #2
    jack620
    jack620 is offline GOLD MEMBER
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    Default

    Quote Originally Posted by Dengue View Post
    The question still remains, can the oil based varnish be applied to shellac?
    Yes, you can pretty much apply anything over a sealer coat of shellac. But those “stain and varnish” type finishes always look awful in my experience.
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  4. 6th September 2022, 03:12 PM #3
    Dengue
    Dengue is offline GOLD MEMBER
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    Thanks jack620, after applying the first coat on top of the lightly sanded shellac, I am inclined to agree. Hopefully the next 2 coats will see a big improvement.
    And that stuff is not cheap, $23 for 250ml, $60 for 1 litre. Fortunately I found an unopenedtin I bought 5 years agao
    regards,

    Dengy
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  5. 22nd November 2022, 03:11 PM #4
    paul.cleary
    paul.cleary is offline Senior Member
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    Yes, you can apply an oil-based varnish on top of a shellac sealing coat, provided you have used a de-waxed shellac.
    If home-made then the shellac mixture must be made from blonde (dewaxed) shellac flakes.
    if commercial then a tine of Zinsser Clear Bulls Eye Shellac
    New Zealand
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