Ding All Q-Cell Filler- 12 oz. Bag (1.3 Cups by Volume) for Surfboard Ding Repairs, Boat and Fiberglass Repairs

I use the Q-Cell to repair my surfboards. Pictured is a fin box I repaired by mixing the product with epoxy to make the seal harder and lighter. Definitely a must have for at home repairs.

works very well. mix with resin to get a paste, apply, use the cheese grater to shape it once starts to harden, sand smooth, and then glass over the top to seal it up

This is the typical filler to mix with your epoxy. It simply works, however, it is quiet expensive for what it is and the little amount you get. If you have a big ding/break you might want to find another source or order multiple bags.This helped me fix one board with a very bad tail. Did a total rebuild and worked just fine.

did as advertised

Take caution because its powder but the functionality was great, mix with a little of Ding sandable resin, it puffs a little let it dry sand it with proper tools and it feels lite filling and strong I like it. may take some practice on how much powder to use with resin.

A good amount of material is included in this package, and it performs as expected.

This does what I needed. I get a nice white filling.

Super fine powder if you have not used this stuff before. Great for bulking out filler for larger dings, seems to be a very effective replacement for foam and cures a bright white finish.