West Epoxy 407 Low-Density Filler for Fairing Brown in Colour

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. It’s easy to sand or carve this putty once it has cured. The filler is reasonably strong on a strength-to-weight basis. You can blend it into any WEST SYSTEM 105 Resin/20X Hardener combination, G/flex Epoxy 650, or G/5 Five-Minute Adhesive. 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. Cures to a dark red/brown color.

WEST SYSTEM Low density filler
A blended microballoon based filler for filleting and fairing work.
This lightweight additive has good load bearing strength but is easy to work with hand tools after cure.
For filling and fairing add 20% to 40% by weight to WEST SYSTEM epoxy mix.

Mixing instructions:
Mix WEST SYSTEM resin and hardener thoroughly.
Gradually stir in the filler to thicken the mix as desired.
Refer to technical literature and publications for detailed instructions.

Color: dark red-brown.