about pressure tanks

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Rifleman1776

Rifleman1776

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Mountain Home, Arkansas, USA.
I have been using an old pain pressure tank for my stabilizing. It is a 3 gal. tank and the inside is quite dirty with old paint. I use a glass container inside to hold the wood and solution. But, the container holds only about 1 1/2 quarts of solution plus about 25 blanks. I would like to increase the volume by using the tank itself. Then I could have about 2 gallons of solution plus a bunch of wood.
The question is: will an acetone or MEC solution be affected by the metal of the tank?
 
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I don't know but your old paint should definitely come out with acetone. You may have to do a test run with a small amount of solution.
 
Frank
When I painted my house about a year ago I picked up an old pressure tank a Goodwill that had to be cleaned out. I used Klean Kutter Refinisher ( leftover from refinishing a tabel) and it worked great. I took great care to keep it away from the rubber/plastic seal. The cost should be less than using acetone.
 
I think you were asking if the metal would be affected by acetone or MEK?
The answer is no. Rubber parts will be. Also, what type of paint was used in the pot? Some of the epoxy paints will not get touched by acetone at all (i.e. laminar x-500 series). I will try to get which one of the paints we use on propeller blades that keytone won't touch, but that de-natured alcohol and acetone will. This would only be applicable if the tank was used at a military installation or a military OEM or repair station, because that paint was VERY proprietary.

What you do need to look out for is the porosity of the casting of the tank.
Some are good with tight pores, some are really surface pourous, and once again, some were also very nicely finished due to the products being used (as the interior was machined to removed the porosity).

Quite often, even though it evaporates, MEK will leave a film (which can be removed with DNA) that can really affect the performance of other chemicals. If the tank you have is pourous, then it can (and probably will) leave residue in the pores. If you find it to be very surface pourous, then a couple of good washings with DNA should take care of that as well, to the point that there should not be enough contamination.

Lastly, just be careful using MEK, because it is easily absorbed through the skin, and builds up quickly with repeated use, and use plenty of ventilation, because it can make you real loopy real good, real quick.

Just my .02
Jerry
 
Last edited:
Jerry, that is an excellent response. Just what I was looking for. I'll save this for reference. From what you say, I can clean the pot and use with my stable solution but might risk a little discoloration. I'll experiement and adjust from there.
BTW, I wear Nitrile gloves when handling almost anything chemical. And, I enjoy breathing so take precautions along those lines as well. Thanks for the help.








JerrySambrook said:
I think you were asking if the metal would be affected by acetone or MEK?
The answer is no. Rubber parts will be. Also, what type of paint was used in the pot? Some of the epoxy paints will not get touched by acetone at all (i.e. laminar x-500 series). I will try to get which one of the paints we use on propeller blades that keytone won't touch, but that de-natured alcohol and acetone will. This would only be applicable if the tank was used at a military installation or a military OEM or repair station, because that paint was VERY proprietary.

What you do need to look out for is the porosity of the casting of the tank.
Some are good with tight pores, some are really surface pourous, and once again, some were also very nicely finished due to the products being used (as the interior was machined to removed the porosity).

Quite often, even though it evaporates, MEK will leave a film (which can be removed with DNA) that can really affect the performance of other chemicals. If the tank you have is pourous, then it can (and probably will) leave residue in the pores. If you find it to be very surface pourous, then a couple of good washings with DNA should take care of that as well, to the point that there should not be enough contamination.

Lastly, just be careful using MEK, because it is easily absorbed through the skin, and builds up quickly with repeated use, and use plenty of ventilation, because it can make you real loopy real good, real quick.

Just my .02
Jerry
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