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  • ChazC
    replied
    I picked up these a few years ago and while they do work well and are Acetone-proof, the Acetone does evaporate after a few days:

    https://www.amazon.com/Acetone-Dispe...74&sr=8-1&th=1

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    I also have an older version I got at a lab supply house that has a SS cap & mechanism, but it doesn't do any better than these cheap ones. The key is to only use for those solvents/light lubricants that a) aren't super volatile or b) only use for those chemicals that you use every day (like at the nail salons).


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  • JRouche
    replied
    Originally posted by BigMike782 View Post
    That style pump dispenser were used near offset printing presses to dispense type wash for cleaning up ink.
    Yes they were. In some spots. Yes, I worked in a print shop also. A big print shop. Oh well... JR

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  • BigMike782
    replied
    That style pump dispenser were used near offset printing presses to dispense type wash for cleaning up ink.

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  • J Tiers
    replied
    Originally posted by Bob Engelhardt View Post

    The problem with a tight bottle and a dip tube is that it will thermal pump. When it cools it will draw air in through the tube & when it heats it will push the fluid out the tube. If that sounds improbable, let me assure you that I've lost bottles of paint thinner to that.

    Now, I drill a hole in the side of the bottle where my finger can close the hole when I want to squeeze fluid out.
    The essential factor in the above is the "dip tube". I keep a number of those long-spouted bottles of oil around the shop. The oil is actually pretty good thin oil, and the flexible spouts are great, reaching in to oil things that are behind, under, etc.

    The problem is that the spout is extendible, and can be pushed back to where it is a dip tube. Then the changes of temperature do cause it to act like a thermometer, and push oil out the top. It seems to happen most at or below 3/4 full, where air temperature builds up pressure in the air-filled space.

    The cure is to have the dip tube always pulled up out of the oil. That's a nuisance to remember, and makes for a storage problem, but the alternative is oil all over everything.

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  • Tungsten dipper
    replied
    The best part of all of these dispensers is you store small amounts of flammable liquids in your shop. I store the gallons of solvents outside in my shed away from the house.

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  • IronDeficient
    replied
    I watched a vid that featured one of those dispensers recently too. It got me to thinking that what I wanted was a storage bottle that wouldn't lose the acetone, but also had a precise applicator. I'm using acetone mostly for gluing ABS. I found a little polyethylene eyedrop squeeze bottle, turned a brass adapter to fit and put a luer taper on the end.

    So far, it's working well. It's been about a week and I haven't seen much sign of evaporation. A larger bottle would be an improvement though, as this is tiny.

    I'd tried acetone in an actual hypo before, but it ate the plunger end.

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  • BCRider
    replied
    Originally posted by Tungsten dipper View Post

    I have used acetone in that bottle for 5 years with NO leakage. I do have a heated and well insulated garage, (R-40 in ceiling) with little temperature change. I also have one filled with alcohol with no problems. Like Dan, I mainly use them for TIG welding. Just order 4 more bottles for WD-40, solvent, and for replacements.
    Thanks, that says a lot about those two products.

    I guess the bottom line is that if a product is in a sealed container and it puffs out with pressure that vents when the cap is removed then it's not a good product to use in one of those syphon pickup bottles. And you're right, I don't recall acetone cans feeling "plump" and hissing when the cap is removed now that I think about it.

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  • alanganes
    replied
    Like either of these maybe:

    https://www.mcmaster.com/solvent-dis...-dispensers-6/

    https://www.mcmaster.com/solvent-dis...ble-liquids-6/

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  • Tungsten dipper
    replied
    Originally posted by BCRider View Post

    For solvents with a vapor pressure that is higher than atmospheric the same issue will occur. But in that case the evaporation of the solvent in the bottle causing some pressure will make the contents evaporate the whole bottle up and out the spout.

    TD, have you actually used those bottles for acetone? If you have and there wasn't any issue it must mean that the vapor pressure of acetone is roughly the same as atmospheric. But on a warmer day?

    Those little dispensers with the dish on top sound a lot like the alcohol bottles that were always found in doctors' offices. They'd dab a ball of cotton on the lid to wet with the alky to swab the skin before a shot. Now, of course, it's all about separate alky wipes in little packages to help fill up landfills.
    I have used acetone in that bottle for 5 years with NO leakage. I do have a heated and well insulated garage, (R-40 in ceiling) with little temperature change. I also have one filled with alcohol with no problems. Like Dan, I mainly use them for TIG welding. Just order 4 more bottles for WD-40, solvent, and for replacements.

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  • JRouche
    replied
    I used to use them with iso alcohol on the electronics solder/de-solder bench. Dunno how the acetone would react. It loves to eat plastics. JR

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  • eKretz
    replied
    I use one of those type dispensers for IPA on my electronics/basement workbench. Mine used to be a hand disinfectant dispenser or something. I repurposed it after it was empty. It's got a push down pump and small dish on top, but additionally has a twist-to-close function, which prevents evaporation losses. Not sure if it would hold up to acetone or not.

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  • BCRider
    replied
    Originally posted by Bob Engelhardt View Post

    The problem with a tight bottle and a dip tube is that it will thermal pump. When it cools it will draw air in through the tube & when it heats it will push the fluid out the tube. If that sounds improbable, let me assure you that I've lost bottles of paint thinner to that.

    Now, I drill a hole in the side of the bottle where my finger can close the hole when I want to squeeze fluid out.
    For solvents with a vapor pressure that is higher than atmospheric the same issue will occur. But in that case the evaporation of the solvent in the bottle causing some pressure will make the contents evaporate the whole bottle up and out the spout.

    TD, have you actually used those bottles for acetone? If you have and there wasn't any issue it must mean that the vapor pressure of acetone is roughly the same as atmospheric. But on a warmer day?

    Those little dispensers with the dish on top sound a lot like the alcohol bottles that were always found in doctors' offices. They'd dab a ball of cotton on the lid to wet with the alky to swab the skin before a shot. Now, of course, it's all about separate alky wipes in little packages to help fill up landfills.

    Leave a comment:


  • Bob Engelhardt
    replied
    Originally posted by Tungsten dipper View Post
    These work great!
    Click image for larger version  Name:	Screen Shot 2022-04-29 at 9.02.51 AM.png Views:	26 Size:	554.6 KB ID:	1998740
    The problem with a tight bottle and a dip tube is that it will thermal pump. When it cools it will draw air in through the tube & when it heats it will push the fluid out the tube. If that sounds improbable, let me assure you that I've lost bottles of paint thinner to that.

    Now, I drill a hole in the side of the bottle where my finger can close the hole when I want to squeeze fluid out.
    Last edited by Bob Engelhardt; 04-29-2022, 12:38 PM.

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  • Dan Dubeau
    replied
    Originally posted by Tungsten dipper View Post
    These work great!
    Click image for larger version  Name:	Screen Shot 2022-04-29 at 9.02.51 AM.png Views:	77 Size:	554.6 KB ID:	1998740
    Those are the bottles I use now. They work great and are cheap. That one is filled with lacquer thinner, but I have had acetone/tranny fluid combo in one before and it didn't eat it. It did evaporate though. The thinners dont though
    Last edited by Dan Dubeau; 04-29-2022, 05:07 PM.

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  • Tungsten dipper
    replied
    These work great!
    Click image for larger version

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