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Schellack Spraying? AM I CRAZY?

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Forum topic by Waldschrat posted 1991 days ago 2357 views 0 times favorited 11 replies Add to Favorites Watch
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Waldschrat

505 posts in 2036 days


1991 days ago

Topic tags/keywords: question sanding refurbishing finishing spray gun tip trick

I have recently read a book about finishing called “Foolproof Wood Finishing” by Teri Masachi, and she is a profi. wood finisher. In this book she says that one can spray on like 6 layers of schellack in 30 min, compared to a whole day (I am guessing out of personal experience, but does not state in book how long it took the person who bet her she could not spray on so many layers so quickly).

Has anybody tried this? Does this work? Is it really 100% defect free? How hard is it to clean the gun afterword and how big a jet do I need to do this? Will a HVLP gun work?

PLEASE let me know I am truly curious, I have asked many meister, and many journyman here some laughed at me and none have heard of it, and a pair thought it might be worth trying, but before I waste my time and ruin/spend a day cleaning a pistol out, well, I would like to know.

-- Nicholas, Cabinet/Furniture Maker, Blue Hill, Maine


11 replies so far

View Scott Bryan's profile

Scott Bryan

27251 posts in 2423 days


#1 posted 1991 days ago

You could put that many coats on in a day’s time but I don’t know about 30 minutes. A coat of shellac will cure out, depending upon the ambient temperature, in about 30 to 45 minutes. On the bookcases that I posted I sprayed 5 coats of 2# cut without any problem over an 8 to 10 hour period with my Earlex 5000 HVLP system. Cleanup was really a breeze since all you have to do is rinse out the reservoir with alcohol and spray clean alcohol through the sprayer. I did go ahead and break the sprayer down and clean the individual parts with an alcohol wash but the total clean-up time was less than 15 minutes.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View childress's profile

childress

841 posts in 2142 days


#2 posted 1991 days ago

You sure she wasn’t talking about a spray can?? Zinsser makes a clear spray shellac. I’ve never tried it, but with the spray can, it doesn’t seem like much trouble to give it a try.

-- Childress Woodworks

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Waldschrat

505 posts in 2036 days


#3 posted 1991 days ago

Scott, thanks! I will check out your bookcases… Childress, I do not know, I just took it that she was using a spay gun….

One more question, how is the polish after spraying, does the end coat still have to be done by hand to get the hight gloss? I would imagine that the spay would leave a matte finish. I also know I learned to use the final polish with a drop of oil… Is that also not necessary anymore?

-- Nicholas, Cabinet/Furniture Maker, Blue Hill, Maine

View NickTobis's profile

NickTobis

25 posts in 1997 days


#4 posted 1991 days ago

Shellac is easy to deal with…Dilute it with denatured alcohol. If your buying the flakes, then you need to let them dissolve for some amount of time. If your buying pre mixed shellac, then dilute it to 70% alcohol and 30% shellac for your first couple of coats. Spray light, and each coat should be dry within 30 minutes. Sand or steel wool it down, repeat process. As you build up coats, mix heavier, 50% alcohol and 50% shellac always works well for me on the finals. Clean the gun with the alcohol, should be no problems. I spray with a DeVilbiss Gravity HVLP gun with 1.4mm tip no problems. Also just an added note, I use the shellac a lot of times just as a base coat for my lacquer finishes….Good luck

-- T&G, West Palm Beach

View Scott Bryan's profile

Scott Bryan

27251 posts in 2423 days


#5 posted 1991 days ago

Nicholas, the finish came out with enough sheen for me but I did not try to polish it out. It certainly was not a piano finish but sheen-wise it was very close to that produced by gloss polyurethane, which I normally use as a topcoat. I have never had much luck with french polishing shellac. I have practiced it but never could get the finish I wanted. That is a technique that I would like to eventually learn

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View Tom Adamski's profile

Tom Adamski

306 posts in 2372 days


#6 posted 1991 days ago

I use the Zinser wax free shellac to seal everything before applying lacquer. I use a Earlex HVLP with a 1.5mm tip and it does a great job. Clean up is a snap. I have attempted to french polish, but as of yet have not fully grasped the process. Like Scott, I’d love to learn the process.
I have heard some good information on the beal buff for polishing out shellac. I am considering getting it. Anyone have any inside info on this?

Tom

-- Anybody can become a woodworker, but only a Craftsman can hide his mistakes.

View Loren's profile

Loren

7253 posts in 2249 days


#7 posted 1991 days ago

Shellac WILL fry that fast, especially with thin spray coats.

The bugaboo is your gun must be absolutely clean of other
solvents and you have to clean thoroughly with denatured
al. – sprayed shellac demands a rigorous habit of cleanliness.

Shellac is a dream to work with once you figure it out.

-- http://lawoodworking.com

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Waldschrat

505 posts in 2036 days


#8 posted 1987 days ago

ok great thanks fellows! I will try out to see what I can do. I can do the normal style of schellack/french polish, so by hand and all that, but with the pistol it should go way quicker. Probably I will see if I can not get a pistol for just doing the shellack.

I have not heard of beal buff… what is it? would be interesting to know!

thanks again..

-- Nicholas, Cabinet/Furniture Maker, Blue Hill, Maine

View Tom Adamski's profile

Tom Adamski

306 posts in 2372 days


#9 posted 1987 days ago

Waldschrat,
Here is the link to the Beal Buff

http://www.bealltool.com/products/buffing/buffer.php

-- Anybody can become a woodworker, but only a Craftsman can hide his mistakes.

View Waldschrat's profile

Waldschrat

505 posts in 2036 days


#10 posted 1984 days ago

Tom, thanks, i will check out the link out too!

-- Nicholas, Cabinet/Furniture Maker, Blue Hill, Maine

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Waldschrat

505 posts in 2036 days


#11 posted 1936 days ago

So I tried out the whole spray thing and It worked great! Thanks for the help and the links and all! Its true Shellack spraying is a dream, way faster with great results!

Thanks again!

-- Nicholas, Cabinet/Furniture Maker, Blue Hill, Maine

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