I am not at home to be 100% sure on the name. Friend of mine who does bodywork had me buy EZ Fill or EZ Sand. Something like that, but I will confirm tonight for you. He loves it cause it can be sanded quickly, and it remains easily sandable once fully cured.
Compared to other fillers this has been a godsend for me. Had to purchase through my local autobody paint supply store. Make sure you know someone who can run it through their account or you will fall over from the price.
