How to make permanent glue?

Hello, guys, i gonna make a flex fluid using tutorials on youtube, and before i have started i wanna think about all.
Firstly, it must be liquid and transparent at the beginning of using. Then i want it consiously turn less liquid and transparent. I know, color is going to be made in it’s material blueprint, but ,if particles are permanent, i cant use Relative Time node. What should I? and what about liquidity? Im on ue4 since July, so i am not complete idiot already:))))

I meant gradually instead of consciously