I am making baseball bat beer mugs and need to seal the inside. Sellers of these mugs online claim they use a "Water based sealer that is safe to drink from" but will not disclose the product by name. Does anyone know of a product I could use?
rcaig
Water based polyurethane will do the job. Once cured (I would give it a week) it is food safe. Four or 5 coats. Most hard finishes are "food safe" after they have dried or cured.
Also one of the salad bowl finishes from General or Behlen's would be better….they are not water based. I have used them on salad bowls which still look great after over 10 years of use. Use it inside and out to completely seal the mug.
The one problem is wood movement. If the wood moves much it could crack the surface of the finish allowing liquid to get under it and cause it to start breaking down.
I'm sure someone will suggest an oil finish, or oil-wax finish. That will work but need to be re-applied frequently. Also assuming the wood will be hickory or ash they are hard wood and do not absorb oil type finishes very well (meaning deeply).
Also one of the salad bowl finishes from General or Behlen's would be better….they are not water based. I have used them on salad bowls which still look great after over 10 years of use. Use it inside and out to completely seal the mug.
The one problem is wood movement. If the wood moves much it could crack the surface of the finish allowing liquid to get under it and cause it to start breaking down.
I'm sure someone will suggest an oil finish, or oil-wax finish. That will work but need to be re-applied frequently. Also assuming the wood will be hickory or ash they are hard wood and do not absorb oil type finishes very well (meaning deeply).
Guys,
LesB's answer is right on target-when finishes are "cured" they are food safe. I learned this in a Finishing Class given by Bob Flexner years ago. He said "food safe finishes" were marketing hype that got you to spend more money than you needed.
When a finish cures, it becomes a type of hard plastic (oil based cure to a "bakelite" type finish-water based to a polyurethane plastic).
If you swallowed a piece of plastic (think spoon, for example) the material has become chemically inert-i.e. it would just pass through your gut.
Hope this helps.
Gerry
LesB's answer is right on target-when finishes are "cured" they are food safe. I learned this in a Finishing Class given by Bob Flexner years ago. He said "food safe finishes" were marketing hype that got you to spend more money than you needed.
When a finish cures, it becomes a type of hard plastic (oil based cure to a "bakelite" type finish-water based to a polyurethane plastic).
If you swallowed a piece of plastic (think spoon, for example) the material has become chemically inert-i.e. it would just pass through your gut.
Hope this helps.
Gerry
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