Hi Troy!

I'm not sure what qcells are.... micro balloons is just tiny glass bubbles that weigh next to nothing. It's the lightest filler that is practical.

Nope you don't mix it with resin. You lay down the resin/glass first, (mixed 50/50 with acetone) and roll it out with a foam roller. You want to get all of the excess epoxy off the plane, and have a smooth even surface. you let that tack for a couple of hours, then literally pour micro baloons on the surface and massage them in. If you do it right, you can't even see that the plane has been glassed from a distance.

However, don't be tricked into thinking the weave is totally filled. There will be a ton of pinholes. but in the end, it's still much lighter than using primer exclusively.

-Mike