FAIRING PUTTY (F206LF)

F206 Fairing Putty is a low-density polyester fairing compound designed for smoothing fiberglass surfaces, filling low spots, and preparing repairs for primer and paint. It is widely used in marine and composite applications where a smooth, durable finish is required.

What is F206 Fairing Putty?

F206 is a lightweight polyester-based fairing compound that mixes with MEKP hardener to create an easy-to-apply, sandable filler. It is formulated for surface preparation rather than structural reinforcement, making it ideal for shaping and refining fiberglass after repair or lamination work.

Key Features

• Low Shrinkage: Less than 1% shrink for consistent surface results
• Non-Sag Formula: Stays in place on vertical and overhead surfaces
• Easy Sanding: Sands cleanly without clogging sandpaper
• Strong Adhesion: Bonds well to polyester and vinyl ester laminates
• Water & Impact Resistance: Suitable for marine environments

Best Applications

• Fairing fiberglass boat hulls and decks
• Filling low spots and surface imperfections
• Preparing surfaces for primer and paint
• Modifying plugs and molds

Where This Fits in Your Filler System

F206 is a fairing filler, meaning it is used for smoothing surfaces—not structural strength.

• Use Q Cell for lightweight fairing mixes
• Use Aerosil (fumed silica) for structural thickening and bonding
• Use Awlfair for high-end marine fairing systems

How to Use

Mix F206 with MEKP catalyst (typically 1–2% depending on temperature), apply with a spreader or trowel, allow to cure, then sand to achieve a smooth, paint-ready surface.

Need Help Choosing the Right Filler?

See our Fiberglass Fillers Guide comparing Aerosil, Q Cell, fairing compounds, and structural fillers →

Still have questions? Contact us at orders@fiberglassflorida.com and we’ll help you select the right product for your project.