Enhance Your Projects with Glass Bubbles Filler Epoxy Polyester - A Superior Filling Solution Review

Used with fiberglass on an airplane. Lots of volume added and then lightly sanded. It goes far. You have to wear a mask because it's so good it blows up.

Works with A+ Epoxy. Interesting instructions state that they must be mixed separately with resin and catalyst. I just mix it with resin and then add catalyst (use pumps) because I'm lazy. Works great for nappies

I used to work with fiberglass and gelcoat. No glass microspheres were used to thicken to use as a filler. This stuff works great. Easier to sand than no-ball gelcoat and just as durable. Hate glue and don't want to use it? Try it. In a respirator, by the way. This substance is like dust, and you don't want to breathe in microscopic glass beads.