Q-Cell Filler for Fiberglass Applications

What is Q-Cell?

Q-Cell is a lightweight microsphere filler used in fiberglass repair and marine applications. It is commonly mixed with polyester resin, epoxy resin, or vinyl ester resin to create a smooth, easy-to-sand fairing compound.

How to Use Q-Cell

• Mix Q-Cell into resin until a peanut butter consistency is reached
• Apply with a spreader
• Allow to cure fully
• Sand smooth before priming or applying gelcoat

Best Uses for Q-Cell

• Fairing boat hulls
• Filling low spots in fiberglass
• Surface smoothing before primer

Q-Cell vs Other Fiberglass Fillers

Q-Cell is best for lightweight sanding applications. For structural strength, consider other fiberglass fillers such as aerosil(cabosil) or chopped fibers.

Not sure which filler to use? See our fiberglass fillers guide comparing Aerosil, Q Cell, fairing compounds, and structural fillers →

Need Help Choosing?

Call us or email orders@fiberglassflorida.com for help selecting the right filler for your project.