West System® 410 Microlight Faring Filler. An ideal low-density filler. Creates a light and easily-worked epoxy faring compound. Designed for faring, thickening and light surfaces. Especially suited for faring large areas. Formulated to mix into epoxy more easily than typical faring fillers. 30% easier to sand than most other epoxy-based faring compounds. Feathers to a find edge and is more economical for large faring jobs. Can be blended into any West System® 105 Epoxy Resin®/200 Series Hardener combination. Not recommended for use under dark paint or on other surfaces subject to high temperatures. Cures to a tan color. Tan. 5 oz.