speedokote color blender

Anybody use the speedokote color blender smr-3500? I seent it say that is was a direct replacement for ppg dbc500, just wondering if anybody has used it or knows anything about it. I might try it on a couple pieces its only 50 dollars a gallon so its not like im spending a shit load of money to see if it works. Heres a link to it

http://www.ebay.com/itm/PPG-DBC500-C...65d116&vxp=mtr