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Shellac Question

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Forum topic by tomsfoolery posted 12-08-2020 09:19 PM 499 views 0 times favorited 8 replies Add to Favorites Watch
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tomsfoolery

31 posts in 128 days


12-08-2020 09:19 PM

Topic tags/keywords: shellac finishing

I got a can of regular shellac the wax type. I want to use it to get rid of it. I use flakes to make my go-to shellac. Can I put the dewaxed on top of the wax shellac used as a base coat? I usually put a wipe-on poly mixture I made to go on top of the shellac. I understand you can not put a wipe on poly on top of the wax shellac. I could be wrong on that. I thought I could put a couple of coats of the wax then a couple of coats of the dewaxed and then I could put the poly on-top of the shellac. Thanks for any insight on this

-- Purpose of Life a Life of Purpose


8 replies so far

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Rich

6609 posts in 1604 days


#1 posted 12-08-2020 09:57 PM

If it were me, I’d just toss the waxed stuff. What do you have in it, maybe $15 or $20? If you don’t want to throw it away, set it aside for less critical projects, or for use in areas where you want to seal the wood, but don’t plan any other finish on top, such as the interior of a cabinet.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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Robert

4454 posts in 2496 days


#2 posted 12-08-2020 10:18 PM

My understanding is dewaxed is only used as a topcoat.

-- Everything is a prototype thats why its one of a kind!!

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Fred Hargis

6849 posts in 3508 days


#3 posted 12-09-2020 11:38 AM

It’s not clear how well that works; at least not to me. A new coat of shellac dissolves into (and with) the previous coat. There are those who claim (rightfully, I suspect) that if you do this with a waxy shellac on the bottom and dewaxed on the top, the dissolution will allow the wax to migrate to the dewaxed application. Probably true, but whether it’s enough to make a difference is anyone’s guess. I’m guessing you will be good to go, but why take a chance? Just toss the waxy stuff.

-- Our village hasn't lost it's idiot, he was elected to congress.

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OSU55

2740 posts in 3004 days


#4 posted 12-09-2020 01:26 PM

I seal shop made jigs etc with shellac help things slide and stop fast liquid absorption from spills etc. Use up the waxed shellac on non critical items like that. Would not chance it under dewaxed shellac with poly on top. Not sure why you put shellac under poly. Poly has all the chatoyance of shellac.

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Lazyman

6667 posts in 2402 days


#5 posted 12-09-2020 01:43 PM

I’ve never tried this but I read once that you can dewax shellac yourself by putting it in the freezer (might have just been the fridge?) and then slowly pouring it through a paint filter. As it gets cold, the wax coagulates and will be strained out by the filter yielding a (mostly?) wax free shellac. It might be worth it to repeat a second time to get more of the wax to separate? Not sure just how cold it needs to be.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

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Fred Hargis

6849 posts in 3508 days


#6 posted 12-09-2020 01:47 PM

If you let waxy shellac sit, the wax will settle in the bottom of the container and you can decant off the dewaxed part if you want. Letting it sit in the fridge should make that easier I would think.

-- Our village hasn't lost it's idiot, he was elected to congress.

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tomsfoolery

31 posts in 128 days


#7 posted 12-09-2020 09:01 PM

Thanks for the suggestions. I am going to try the fridge. I put it in for a couple of hours with no luck so I will try a bit longer.

-- Purpose of Life a Life of Purpose

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OSU55

2740 posts in 3004 days


#8 posted 12-09-2020 11:37 PM

Might try the freezer. Alcohol freezes at -173F, no danger of the bottle exploding

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