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Topic: looking for something that is colored when wet and clear when dry.  (Read 8272 times)

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Offline darrin

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what can be added to a liquid that is colored when wet and dries clear?  I'm looking for something that could be added to a liquid to aid in the application process.

Offline kunjal8015

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Re: looking for something that is colored when wet and clear when dry.
« Reply #1 on: August 30, 2009, 05:48:05 PM »
Maybe you can use pH indicators to measure the application.


Offline Fridushka

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Re: looking for something that is colored when wet and clear when dry.
« Reply #2 on: August 30, 2009, 05:51:42 PM »
yeah that's one of the best choices..
wish you good luck:)

Offline Tom Hom

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Re: looking for something that is colored when wet and clear when dry.
« Reply #3 on: March 21, 2010, 01:42:54 PM »
Hi Darrin,

Did you ever find the chemical/solution you were searching for?

Tom

Offline darrin

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Re: looking for something that is colored when wet and clear when dry.
« Reply #4 on: March 27, 2010, 11:31:38 PM »
Not really.  I need something like they put in Elmer's glue sticks that is purple when wet and dries clear.  The material I'm working with has a PH of roughly 8.3 and I used Phenolphthalein hoping that it would work but I have not gotten it to work yet.  Any ideas?


Offline billnotgatez

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Re: looking for something that is colored when wet and clear when dry.
« Reply #5 on: March 28, 2010, 06:27:05 AM »
Just curious
Do you want it to turn colored again if it gets wet?

Offline darrin

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Re: looking for something that is colored when wet and clear when dry.
« Reply #6 on: March 29, 2010, 01:21:44 PM »
The substace is a finish product so it will not get wet again. 

Offline billnotgatez

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Re: looking for something that is colored when wet and clear when dry.
« Reply #7 on: March 29, 2010, 01:40:21 PM »
Aha -
something that is colored but when exposed to air it turns clear.

I was thinking maybe we could find something that used a 3 step process
apply colored
spay with something that removes the color
seal with another product

that is not what you want

Offline darrin

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Re: looking for something that is colored when wet and clear when dry.
« Reply #8 on: March 29, 2010, 01:58:31 PM »
Ideally, it would go on colored and when dry would be clear.  I do not know what they use in the Elmer's glue sticks but they go on purple and turn clear when dry. 

Offline DemonicAcid

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Re: looking for something that is colored when wet and clear when dry.
« Reply #9 on: April 20, 2010, 08:58:09 PM »
I would explore using a polymerized substituted silane.

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