Add color to your epoxy for concrete coating or encapsulating! Use with either #300/21 or #300/11.  Easy to use! Just add to the 300 side, the mix until uniform color is achieved.  Add hardener to the colored resin at the appropriate ratio and use! You don’t have to use it all in one go either – AeroMarine Eopxy Colorant stores well, though you will need to shake it periodically to prevent the color from settling.  Mix a lot or a little to get the shade you desire!