Profil, also known as glass bubbles is a hollow silicone dioxide powder. It is a
non-absorbent additive used to extend all types of resins and
gelcoats. It can be used in resins alone however, its main
use is to be used in conjunction with other fillers to create
easy to sand compounds.
Tags: Profill, Glass, Bubble, Bubbles, Micro, Balloon, Filler, Fillers, Fiberglass, Epoxy, Putty, Repair, Marine, Automotive