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Randolph
 Post subject: Vinyl sealer question
PostPosted: Thu Feb 25, 2010 10:19 am 
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I have a coat of shellac on my guitar and am ready to start the finishing process. What I would like to do is to grain fill with Z-Poxy. I understand that Z-Poxy does not do well over shellac. Could I spray vinyl sealer over the shellac and proceed to grain fill from there? Anyone have experience with this?
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Tim McKnight
PostPosted: Thu Feb 25, 2010 11:35 am 
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Yes, you can and it works quite well. Make sure the shellac has dried thoroughly for 2 weeks because the vinyl sealer and Z-poxy will prevent the alcohol solvent from escaping. Next time, shoot the bare wood with vinyl sealer first.

If you are using a catalyzed top coat then you will need to add the same catalyzed hardener to the vinyl sealer to retain compatibility.

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Randolph
PostPosted: Thu Feb 25, 2010 11:49 am 
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Tim, thank you. Yes, the shellac has been on over a month. Top coat will be nitro. I didn't have any vinyl sealer at the time and the weather was doing some threatening humidity shifts so I went with the shellac. This helps a lot.
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Randolph
PostPosted: Thu Feb 25, 2010 12:13 pm 
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Quote:
Filippo Morelli wrote:
I've had no issues with Zpoxy over dewax shellac.

Fillipo, this is good to know. I am off to search for Todd Stock's finish schedule (that is, after a visit to the deli) - you got me hungry there!! I'll let you know if I don't find it. Thanks!!
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