If you mix your own just remember to run it through a filter .
A fine mesh one.
I spray it all the time.
1 liter Alky to 4 oz. of shellac makes a great sealer .
Shake well !
Enjoy!
Mc
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| Author: | Michael [ Wed Mar 03, 2010 12:09 pm ] |
| Post subject: | Spraying shellac |
I am set up to spray lacquer and I always brush on shellac as a sealer with final results that I am quite happy with. I would like to avoid having to level sand the brush marks before I lacquer so I thought I would try to spray (not brush) the shellac instead ( I don't want to use any other sealer). Does anyone have a cut recommendation or any other thoughts on this subject? I will probably use a Prevail sprayer to experiment with if no one responds. Thanks... Michael |
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| Author: | Tim McKnight [ Wed Mar 03, 2010 12:12 pm ] |
| Post subject: | Re: Spraying shellac |
I use a 2 lb cut of super blond flake shellac cut with DA for sealing. |
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| Author: | Jimmy Caldwell [ Wed Mar 03, 2010 12:15 pm ] |
| Post subject: | Re: Spraying shellac |
I've been using shellac as sealer on tops for many years. I wipe it on with a paper towel followed by a once over with synthetic steel wool about 45 minutes later. Quick and easy and I don't have to clean a spray gun. |
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| Author: | Bailey [ Wed Mar 03, 2010 1:21 pm ] |
| Post subject: | Re: Spraying shellac |
I'm probably going to get the 3rd. degree....but I use Zinsser Bulls Eye Shellac (clear) in a spray can from my hardware store. I've used this product on some of my carved wood projects as a sealer coat to a poly finish and used it (reluctantly at first) on my last 3 builds with lacquer and worked just fine. I also liked the convenience of quick coating areas like the top before taping bindings and recoating small resanded areas and not having to mix or clean up my sprayer for small or quick applications. There is NO control of spray thickness...so light wiping/sanding/steel wool may be necessary. Kent |
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| Author: | Mike Collins [ Wed Mar 03, 2010 1:47 pm ] |
| Post subject: | Re: Spraying shellac |
If you mix your own just remember to run it through a filter . A fine mesh one. I spray it all the time. 1 liter Alky to 4 oz. of shellac makes a great sealer . Shake well ! Enjoy! Mc |
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| Author: | Fred Tellier [ Wed Mar 03, 2010 2:14 pm ] |
| Post subject: | Re: Spraying shellac |
I spray 2 pound cut shellac with the same gun settings as lacquer except the flow needle is closed down a bit as the viscosity is lower. A couple coats and after 24 hours I spray lacquer, I look over the surface and touch up any rough spots with 400 grit but don't sand the whole surface, the gun cleans great with DA. I use a .8 mm tip on a HVLP touchup gun. Fred |
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| Author: | Michael [ Wed Mar 03, 2010 9:57 pm ] |
| Post subject: | Re: Spraying shellac |
WOW! Great information. This place is the best!!! Thanks to everyone. Michael |
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| Author: | LRegnier [ Thu Mar 04, 2010 11:50 pm ] |
| Post subject: | Re: Spraying shellac |
Hi Michael, I also noticed in prior post that one should be careful when spraying shallac since it is reduced with alcohol which is highly flammable. Luc |
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| Author: | MRS [ Fri Mar 05, 2010 3:22 am ] |
| Post subject: | Re: Spraying shellac |
LRegnier wrote: Hi Michael, I also noticed in prior post that one should be careful when spraying shallac since it is reduced with alcohol which is highly flammable. Luc Most spray finishes are highly flammable not just shellac. Don't spray near open flames or even concealed ones like a water heater or furnace. |
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| Author: | Bobc [ Fri Mar 05, 2010 9:50 am ] |
| Post subject: | Re: Spraying shellac |
I spray waterborne shellac from target Coatings. great stuff. Water clean-up. |
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| Author: | meddlingfool [ Fri Mar 05, 2010 11:03 am ] |
| Post subject: | Re: Spraying shellac |
I sprayed Zinnser 100% dewaxed sealer with Preval sprayers for the first time a few weeks ago and was simply delighted. Same thing as using a can, you can't control spray pattern so care is needed during application, but I found it a step up from both wiping and brushing. |
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| Author: | sprouseod [ Fri Mar 05, 2010 2:01 pm ] |
| Post subject: | Re: Spraying shellac |
Bailey wrote: I'm probably going to get the 3rd. degree....but I use Zinsser Bulls Eye Shellac (clear) Kent I have always used the Zinsser Sanding Sealer which I believe is a 2# cut but is dewaxed. An I spray it on with no additional cutting Richard |
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| Author: | Michael Dale Payne [ Fri Mar 05, 2010 2:15 pm ] |
| Post subject: | Re: Spraying shellac |
Bailey wrote: I'm probably going to get the 3rd. degree....but I use (clear) in a spray can from my hardware store. I've used this product on some of my carved wood projects as a sealer coat to a poly finish and used it (reluctantly at first) on my last 3 builds with lacquer and worked just fine. I also liked the convenience of quick coating areas like the top before taping bindings and recoating small resanded areas and not having to mix or clean up my sprayer for small or quick applications. There is NO control of spray thickness...so light wiping/sanding/steel wool may be necessary. Kent Zinsser Bulls Eye "Sanding Sealer" is perfect to spray straight from the can. Their aresol spray shellac is not wax free. |
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| Author: | evanmelstad [ Fri Mar 05, 2010 2:52 pm ] |
| Post subject: | Re: Spraying shellac |
Hi Michael, My Zinnser spraycan sellac says on the back it is 100% wax free. Is that a lie? http://www.zinsser.com/pdf/TDB/be_sprshell.pdf Evan |
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| Author: | Michael Dale Payne [ Fri Mar 05, 2010 3:04 pm ] |
| Post subject: | Re: Spraying shellac |
evanmelstad wrote: Hi Michael, is the product in a yellow can? or a pinkish? it is possible that Sealcoat comes in a spray can now and I am just not aware but historicly Seal Coat was their only 100% waax free shellac product.
My Zinnser spraycan sellac says on the back it is 100% wax free. Is that a lie? http://www.zinsser.com/pdf/TDB/be_sprshell.pdf Evan |
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| Author: | evanmelstad [ Fri Mar 05, 2010 3:31 pm ] |
| Post subject: | Re: Spraying shellac |
It's in a yellow spraycan, "Traditional Finish & Sealer." Looks just like this: Attachment: zinnser.jpg They claim a "clear, wax-free formula." |
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| Author: | meddlingfool [ Fri Mar 05, 2010 5:23 pm ] |
| Post subject: | Re: Spraying shellac |
Actually, your can says it is a 100% shellac based formula. It also says it is wax free, but that is not the same as 100% dewaxed, which is a different product. I was informed here that wax is a natural product in shellac. I almost bought the same stuff to use under a waterbase finish, but was told that it isn't the right stuff, and had to go to a store out in the sticks to get the right stuff. But, if you're spraying laquer and not waterbase it might work fine, but I don't know. |
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| Author: | evanmelstad [ Fri Mar 05, 2010 6:40 pm ] |
| Post subject: | Re: Spraying shellac |
Interesting. The Technical Data Bulletin (http://www.zinsser.com/pdf/TDB/be_sprshell.pdf) says it is 100% wax free. Does that just mean that there is no wax added? Quote: Pre-finish Sealer – Spray Shellac is 100% wax-free and may be used to seal surfaces under polyurethane finishes, varnishes, paints and other coatings. I've used it as a light seal coat on one french polished guitar about a year ago and did not run into any problems. YMMV of course. |
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| Author: | meddlingfool [ Sat Mar 06, 2010 3:03 am ] |
| Post subject: | Re: Spraying shellac |
I can't answer that more definitively, I'm only passing on what I've been told here to help me. I can see why what you have worked under a French Polish though, shellac on shellac would be fine. |
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| Author: | Laurent Brondel [ Sat Mar 06, 2010 6:21 am ] |
| Post subject: | Re: Spraying shellac |
There can't be wax in the spray aerosol shellac as it would clog the nozzle. |
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| Author: | meddlingfool [ Sat Mar 06, 2010 12:34 pm ] |
| Post subject: | Re: Spraying shellac |
That is good news to me. Laurent, do you think the yellow can stuff would work under waterbase finishes? |
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| Author: | kjaffrey [ Sun Mar 07, 2010 10:50 am ] |
| Post subject: | Re: Spraying shellac |
The can pictured above does state that the finish is "100% wax-free", and that it can be "topcoated with any interior paint or clear finish". With those statements I have used it under both nitro and under Emtech-6000 and have had no bad results so far. Granted I only started doing this about 2 years ago so only time will truly tell. But as a far as being wax free I would say you are pretty safe. Kent |
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