SUPERIOR PRODUCT: Ding All Q-Cell Filler- 12 oz. (1.3 cups by volume) is a super fine powder which is great for bulking out fillers for larger dings, effective replacement for foam and cures a bright white finish. THICKENS RESIN: Ding All Q-Cell Filler is used to thicken Polyester and Epoxy resin to create a Foam White fill paste that is easy to sand. When added to polyester or epoxy resin, Q-CELL filler thickens the resin to make it more workable and expands it to fill in large areas and reduce the overall weight, especially in applications where a light weight is of primary importance ECONOMICAL DING REPAIRS: Q-CELL provides an economical way of extending resin by reducing the amount of resin required. FILLING INSTRUCTIONS: Q-CELL is added to resin at the rate of 5% -10% by weight dependent upon application, and up to 20% can be added if a paste consistency is required. Q-CELL is only a filler and should be sealed with a coat of resin before use. MADE IN THE USA: Available in 12 oz Ding All Q-Cell Filler is proudly MADE IN THE USA and is great for surfboards, boats, and other fiberglass repairs