Q-Cell Filler is used to thicken Polyester and Epoxy resin to create white fill paste that is easy to sand. Also works great with Sun Cure Resin. Q-CELL provides an economical way of extending resin, and in applications where a light weight is of primary importance.,Q-CELL is added to resin at the rate of 0.5 -10% by weight dependent upon application, and up to 20% can be added if a paste consistency is required.,2oz Bag/60 grams