Jonno2018

Good thought DRP but I'm looking for something that is visible for a short while before vanishing , and on most surfaces. Lemon juice would not be visible unless on white paper I assume. Thanks,

Thanks for your input DRP, That's kind of thing I'm hoping to explore. Application wise I'm just after a solution that I can write with that dries clear and leaves no residue and is non harmful. Once dry the surface will not affect skin etc and be okay to touch. I guess there are disappearing inks already in use but are these usable on any surface ? Ideally a number of colours could be used. Thanks,

Hi All, First post on this forum, Hopefully in the right section, looking for some help please;Not sure if this is even possible but as the title suggests,is it possible to give a coloured liquid properties so that once it dries, cools or evaporates it turns clear ? I've seen a glue on the market which is purple and turn clear when it dries, but I'm wanting this to dry without residue and be like water.Thanks In advance Jon