First of all, my thanks to John People for taking the time and answering. Now, I have how to make the mixture so as not to use the entire product and share it: Put some resin in a container. Then add a few drops of the lilac catalyst, the resin will take a more or less pink color. Then add droplets of the clear catalyst, until it looks pink and returns to the original color of the resin. Not much catalyst should be used to prevent it from hardening very soon. EYE : NO leaving the catalyst bottles together, because they become inflamed, if there is contact between the liquids, it produces fire. The same happens if a lot of catalyst is used in the mixture.