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Food safe top coat for shot glasses?

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Forum topic by jcn posted 06-28-2010 07:42 PM 11994 views 1 time favorited 19 replies Add to Favorites Watch
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jcn

37 posts in 3988 days


06-28-2010 07:42 PM

Hi folks.

I’m planning to turn a few shot glasses, and a friend of mine is hoping to paint designs on the sides. I was planning on just finishing with mineral oil or something, since they’d potentially be used for drinking. But now that they’ll have paint on them, I feel compelled to put some kind of top coat on there to keep the paint from chipping off.

My first instinct is dewaxed shellac, but I’m thinking that might not work well with the alcohol that will possibly be put into them, since shellac is thinned with alcohol.

So what are some other good options? Is wipe on poly safe for such an application?


19 replies so far

View swirt's profile

swirt

6107 posts in 4024 days


#1 posted 06-28-2010 08:15 PM

Shellac is food safe, but soluble in alcohol. So when you put the vodka or rum in, then you’d get some lac in your drink ;)

-- Galootish log blog, http://www.timberframe-tools.com

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jcn

37 posts in 3988 days


#2 posted 06-28-2010 08:57 PM

lol, yeah I’m hoping to avoid that.

View hObOmOnk's profile

hObOmOnk

1381 posts in 5179 days


#3 posted 06-28-2010 09:07 PM

Note: Only Food Grade shellac is certified to be food safe.

Since some water is drinkable, is all water drinkable?

Here’s a product that is certified to be Food Safe: General Finishes Salad Bowl Finish.

-- 温故知新

View rhett's profile

rhett

743 posts in 4719 days


#4 posted 06-29-2010 12:49 AM

I would search out some cheap, thin glass shot glasses and then turn an outershell of wood for them. Epoxy them in the wood shell and don’t worry about poisoning your friends. Alcohol is the biggest enemy of most wood finishes, unless they are very toxic.

Or use a very dense, oily exotic wood and leave them without finish.

-- Doubt kills more dreams than failure.

View JJohnston's profile

JJohnston

1622 posts in 4343 days


#5 posted 06-29-2010 03:05 AM

All finishes are food safe when fully cured. I don’t know where General (or any finish) claims its certification from, but it isn’t from the FDA – they don’t certify wood finishes. In fact, if you look at the MSDS for the General, it’s nothing but polyurethane varnish.

-- "A man may conduct himself well in both adversity and good fortune, but if you want to test his character, give him power." - Abraham Lincoln

View Don's profile

Don

517 posts in 4125 days


#6 posted 06-29-2010 03:27 AM

Do not use dense, oily exotic woods without a finish. They tend to be very alergenic and it would not only affect the flavor of the drink it could make people sick. Listen to hobomonk and use a finish that is specifically designed for this purpose.

-- Don - I wood work if I could. Redmond WA.

View Dark_Lightning's profile

Dark_Lightning

4514 posts in 4161 days


#7 posted 06-29-2010 03:29 AM

Another option is some sort of resin finish. But that ought to be REAL fun to keep an even coat that doesn’t settle to the bottom. It sounds to me like Rhett has the best idea so far. Come to think of it, CA ought to be an appropriate finish. Any pen turners out there have any information to contribute on that? CA is soluble in acetone, but I’m not so sure about alcohol. Then again, shot glasses- how much time does the shot spend in the glass, anyway? Raw wood might be OK in that case. I sip my Cognac or Scotch slow, so I wouldn’t know- my snifters are all glass.

-- Steven.......Random Orbital Nailer

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hObOmOnk

1381 posts in 5179 days


#8 posted 06-29-2010 12:33 PM

”...meets the requirements of the FDA Regulation, Title 21, CFR175.300 for direct food contact.”

-- 温故知新

View rhett's profile

rhett

743 posts in 4719 days


#9 posted 06-29-2010 12:54 PM

I would rather drink a wood resin than a chemical resin.

That being said, there is a reason you never see wooden shotglasses.

-- Doubt kills more dreams than failure.

View JJohnston's profile

JJohnston

1622 posts in 4343 days


#10 posted 06-29-2010 04:32 PM

FDA Regulation, Title 21, CFR175.300 is a list of generic components of finishes. Any finish composed of these substances can claim compliance with the regulation, but the FDA does not “certify” any finish by name.

-- "A man may conduct himself well in both adversity and good fortune, but if you want to test his character, give him power." - Abraham Lincoln

View jcn's profile

jcn

37 posts in 3988 days


#11 posted 06-29-2010 06:33 PM

What about this Liberon Finishing Oil stuff?

It mentions alcohol specifically.

http://www.rockler.com/product.cfm?page=16797

View Hand_solo101's profile

Hand_solo101

2 posts in 38 days


#12 posted 03-05-2021 05:34 PM

Hi, I’ve been using my own beeswax/coconut oil mix on just about everything recently but am curious if anyone has experience with this type of wood finish and alcohol? Been asked to turn out a wine cup and hoping not to kill my client.

View tvrgeek's profile

tvrgeek

1749 posts in 2701 days


#13 posted 03-05-2021 05:54 PM

Alcohol and wood does not seem like a good combination to start with.

View Hand_solo101's profile

Hand_solo101

2 posts in 38 days


#14 posted 03-06-2021 12:45 AM

Thanks for your reply. You’re right but the customer gets what the customer wants. My job is to find a solution.

View wildwoodbybrianjohns's profile

wildwoodbybrianjohns

2757 posts in 599 days


#15 posted 03-06-2021 01:43 AM

Olivewood would not need any finish. Maybe just a beeswax buff.

Or use a very dense, oily exotic wood and leave them without finish.

- rhett

-- WWBBJ: It is better to be interesting and wrong, than boring and right.

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