West Systems 407B Low Density Filler - 14 Lb

West Systems 407B Low Density Filler is a blended microballoon-based additive designed for creating lightweight fairing compounds when mixed with epoxy resin. This versatile filler produces easily workable putties that sand and carve smoothly, making it ideal for shaping and fairing applications on fiberglass, wood, and composite surfaces.

Key Features:

• Microballoon-based formula creates low-density fairing compounds
• Easy to sand and carve for precision shaping work
• Excellent strength-to-weight ratio for structural fairing applications
• Cures to a dark red-brown color for easy identification
• Compatible with West Systems epoxy resin systems
• Ideal for filling voids, fairing hull surfaces, and creating lightweight cores

This 14-pound container provides ample material for marine repairs, boat building, composite fabrication, and general fairing work. Mix with West Systems epoxy resin to achieve desired consistency—add more filler for a thicker putty or less for a smoother fairing compound. Perfect for use in marine, automotive, and aerospace applications where lightweight, easily shaped fairing material is required.