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Sanding sealer


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Shellac is wonderful stuff and the Seal Coat is the only pre-made / canned, off the shelf product I would recommend. the other stuff, even Zinsser stuff has too many additives in it to increase shelf life that will keep it from ever curing properly. The best is to mix your own from flake or button. The raw flake can be had in several nice natural tones that can add a nice natural looking amber tone to your project. Shellac.net is a good vendor for nice flake and priced right.

Here is some maple that had a couple wash / sealer coats of some Kush flake then topped with Tru Oil.

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I used deft nitro sanding sealer with good results..You can use shellac or just clear nitro but the whole TADA with SS is that it sprays on thicker (or rather has bigger particles?) and makes for less coats to fill in all the low spots. (even after grain filling youll have tons of low spots) To get a perfect flat surface with just nitro takes a lot more coats, where 2 or 3 SS coats you're golden.

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You usually want to match the sealer with whatever the finish coats will be. Flake Shellac is pretty much universally OK with whatever finish you want to throw on top of it. If you're good with French Polishing, you can fill the pores with the shellac/oil/pumice in a traditional way, and some people just use epoxy slightly thinned with alcohol. Or buy some clear pore filler, but I've never had great luck with those.

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as a sanding sealer it is without peer...several coats of nitro or poly on top and the drunks can't hurt it...



Yeah, with something else on top, the alcohol won't bother it.
I was thinking he was going to use the shellac AS the finish. Beautiful stuff but somewhat fragile for guitars. Especially the alcohol angle. A lot of booze gets consumed and spilled around guitars for some reason. :idk:

EG

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You usually want to match the sealer with whatever the finish coats will be. Flake Shellac is pretty much universally OK with whatever finish you want to throw on top of it. If you're good with French Polishing, you can fill the pores with the shellac/oil/pumice in a traditional way, and some people just use epoxy slightly thinned with alcohol. Or buy some clear pore filler, but I've never had great luck with those.

 

 

Many purists freak, but epoxy is an outstanding grain filler. Quite permanent though.

 

EG

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I tried epoxy but it was a major PITA! When that stuff dries it takes some serious sanding to get it off, unlike oil based grain filler you can glob that stuff on and it comes right off, epoxy you must get all the excess of right away or you're screwed... I recomend practicing first on scrap wood and see if it works for you. It did not work well for me at all.

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I tried epoxy but it was a major PITA!

 

If your going to use an epoxy, the best I've used is the Z-Poxy finishing resin. Its thin, spreads easily, and sands wonderfully, just make sure its the finishing resin version.

LMI has a little write up here and you can also find it in most hobby stores http://www.lmii.com/CartTwo/thirdproducts.asp?CategoryName=Filler&NameProdHeader=Z%2Dpoxy

 

Here is a good YouTube showing the squeegee method.

 

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[YOUTUBE]YYHxMg7n9cI[/YOUTUBE]

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