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Author: Subject: I need a challenge
Hazard to Self

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Registered: 15-11-2011
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[*] posted on 24-7-2012 at 13:43

A bit late, but here is one great idea:

Leuco dye (Wiki)

Make your own leuco dye if possible. I am also interested in this dyes, so any reference to procedures/patents is welcome.

Also, it seems that no one has yet figured out how to UV protect this dyes. Making this dyes change color for many years under the direct sun could be very beneficial in some applications.

Here is the site that sells them:
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