407 Low-Density is a blended microballoon-based fairing filler for WEST SYSTEM Epoxy. Add 407 to a mixture of epoxy resin/hardener to create a fairing putty. Its easy to sand or carve this putty once it has cured. The filler is reasonably strong on a strength-to-weight basis. Blended with epoxy to a peanut butter consistency, it will be easy to fair. The higher the percentage of 407 in your epoxy mix, the easier it will be to fair. You can blend it into any WEST SYSTEM 105 Epoxy Resin/200 Series Hardener combination.

Project Uses:
Thicken blended resin/hardener and create a multi-purpose adhesive for:

• Large Scale Fairing
• Fiberglass Repairs
• Architectural Repairs
• Autobody Repairs
• Marine Repairs

Product Specifications:

• Blended Microballoon base
• Color | Red/Brown
• Cures to dark red / brown color

Manufacturer Nos.:

• 407-5 (4 oz)
• 407-15 (12 oz)