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Old 10-25-2008, 04:58 PM   #16
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keep paint wet


go to the local paint store and ask for a cup full of tint from their purge bucket. the tints never dry.

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Old 10-25-2008, 09:41 PM   #17
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keep paint wet


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Originally Posted by Chazbe View Post
go to the local paint store and ask for a cup full of tint from their purge bucket. the tints never dry.
Nestor catches sight of the misconception and chases after it, tackling it by the ankles so it hits the ground hard, and after a brief struggle, pulls out a sharpened wooden stake and plunges it through the still beating heart of the misconception so that it's bannished from the world of the living forever.

The myth that the colourants in a paint tinting machine will never dry is one of the more common misconceptions about paint out there. It's simply not true.

The liquid in paint tinting colourant is glycerine (or, more correctly, glycerol), and it's very slow to dry, but it does evaporate. Put some paint tinting colourant on a piece of wax paper and leave it on your car's dashboard on a hot sweltering day, and it'll be dry in an hour or two.

The reason they use glycerine as the carrier fluid for paint colourants is that glycerine is miscible in both water and mineral spirits, so that the same colourants can be used to tint both oil based and latex paints.

Glycerine evaporates much more slowly than water, but it does evaporate, and like water, it evaporates completely without leaving a residue. If you were to dry some paint colourant, it would dry up and leave a coloured powder behind, which would be the paint pigments that were suspended in the glycerine to make the paint colourant.

If anyone tells anyone that paint colourant never dries, that anyone should take the time to explain to the other anyone that they are mistaken, and that glycerine is simply SLOW to evaporate, but it does evaporate, and completely.
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Old 10-26-2008, 05:09 AM   #18
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keep paint wet


you tell 'em Nestor.... if TINT never dried, how could tinted PAINT ever dry? lol
i think Cubbie had the best idea of the lot.... lipstick. wish i'da thunka that.

DM

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