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Differences among acetone, mineral spirits, lacquer, paint, shellac thinner

Vinko

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What are the principle differences among acetone, mineral spirits, lacquer, paint, and shellac thinner?

I know they've got different chemical compositions, but is there a rule of thumb on the different uses, things you can clean with each of them?

I've been using acetone to clean up urethane and it works like a charm.

I looked in the archives but didn't find anything specific or comparing them.

Hope this ain't too much of a pain-in-the-*** quesiton:thumbup:
 
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kbs2244

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Of the ones you listed Acetone will evaporate with the least amount of surface film left behind.
Denatured alcohol will leave no film behind, but wear gloves. It will **** the oil out of your skin.
For small, complex linkages,(lawnmower carbs and such) I use either spray carb cleaner or spray starting fluid.
The starting fluid is ether and evaporates without a trace.
Most coating will tell what to use to thin it.
The same stuff will work to clean it up.
 

timgr

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Mineral spirits, paint thinner, naptha, Stoddard solvent, white spirits are all basically the same thing - this is also the "solvent" used in solvent tanks in auto shops. It has a much lower vapor pressure than gasoline, acetone, lacquer thinner and alcohol, so it both evaporates more slowly and is less of a fire or explosion hazard than the the others.

Lacquer thinner is a proprietary mix of solvents such as acetone, dimethyl ketone, toluene, alcohol and other petroleum distillates. Has a much higher vapor pressure than "solvent" so it evaporates quickly.

Google is your friend!
 

kf4zht

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Acetone is a decent cleaner and is used to thin quite a few different paints.

Denatured alcohol is great for wiping down parts before they are painted. Gets rid of grease and dust, then evaporates quickly.

Lacquer thinner or MEK will clean anything. Strong ****, but works even on the spray gun your buddy "cleaned" before he gave it back.

All the others I just use as needed to thin paints. I always keep a decent amount of LT, Acetone and Den. Alcohol on hand.
 
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W-Cummins

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For the most part the bottom line is, like dissolves like. Solvents run the range from non-polar to highly polar as do the things your trying to remove or dissolve. On the highly polar side we have water and on the highly non-polar side, straight chain hydrocarbons ( hexane, etc.). Between fall most other things your calling solvents. So the more water (H-O-H) like the solvent ie. ethanol (R-OH) will dissolve things that are like it ie. the shellac. Your Acetone ({CH2}=0) less polar, MEK ({R}2-C=O) even more non-polar all the way to a straight chain hydrocarbon (R-H) no polarity. So one solvent is not ideal for all things you need a range of stuff in your cleaning/dissloving arsenal....

Sorry about the lame notation it's hard in ascii.

William....
 
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theoldwizard1

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Denatured alcohol is great for wiping down parts before they are painted. Gets rid of grease and dust, then evaporates quickly.
Yes and no.

Yes, it cleans grease and dust and it evaporates quickly.

No, because some paints require a "metal prep" to "etch" new bare metal before painting. All of the expensive Imron paint (a HD Polyurethane Enamel) came off of my buddy's race car chassis because he did not use the prescribed DuPont metal prep !
 

RonRock

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No, because some paints require a "metal prep" to "etch" new bare metal before painting. All of the expensive Imron paint (a HD Polyurethane Enamel) came off of my buddy's race car chassis because he did not use the prescribed DuPont metal prep !


Ouch!
 

James E

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For the most part the bottom line is, like dissolves like. Solvents run the range from non-polar to highly polar as do the things your trying to remove or dissolve. On the highly polar side we have water and on the highly non-polar side, straight chain hydrocarbons ( hexane, etc.). Between fall most other things your calling solvents. So the more water (H-O-H) like the solvent ie. ethanol (R-OH) will dissolve things that are like it ie. the shellac. Your Acetone ({CH2}=0) less polar, MEK ({R}2-C=O) even more non-polar all the way to a straight chain hydrocarbon (R-H) no polarity. So one solvent is not ideal for all things you need a range of stuff in your cleaning/dissloving arsenal....

Sorry about the lame notation it's hard in ascii.

William....

If I'm bi-polar, I can use any solvent.
 
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