West System Brand Qualifies for Free Shipping West System Low Density Filler 12 oz #407-15

WEST SYSTEM Low Density Filler 12 oz #407-15

$84.22 $115.00 -27% OFF

WEST SYSTEM Low Density Filler 12 oz #407-15

$84.22 $115.00 -27% OFF

WEST SYSTEM Low Density Filler 12 oz #407-15

$84.22 $115.00 -27% OFF

SKU: WSB-407-15

UPC: 811343011567

More about this item

WEST SYSTEM 407-15 Fiberglass & Repair

407 Low-Density Filler is a blended microballoon-based additive designed to create lightweight fairing putties that are exceptionally easy to sand and carve. This 12 oz container provides substantial material for medium to large fairing projects and applications where you need to create smooth, fair surfaces without adding excessive weight.

Exceptionally Easy to Sand:

The microballoon formulation creates fairing putties that sand more easily than any other WEST SYSTEM filler. This makes 407 the preferred choice when you need to achieve perfectly smooth, fair surfaces with minimal sanding effort, saving time and reducing fatigue during finishing work.

Lightweight Fairing Compound:

When mixed with epoxy, 407 creates a lightweight putty that's ideal for fairing large areas, filling low spots, and building up surfaces without adding significant weight. This is particularly important for racing boats, performance craft, or any application where keeping weight down matters.

Easy to Carve and Shape:

Beyond sanding, 407-thickened epoxy can be easily carved and shaped with hand tools, allowing you to create complex contours and custom shapes. This makes it excellent for sculpting repairs, creating custom fairings, and any application requiring shaping after cure.

Reasonably Strong:

While not as strong as high-density fillers, 407 provides reasonable strength on a strength-to-weight basis. It's suitable for non-structural fairing applications and areas where the primary requirement is creating smooth, fair surfaces rather than maximum strength.

Key Benefits:

  • Easiest to Sand: Microballoon formulation sands effortlessly
  • Lightweight: Minimizes weight addition to your project
  • Easy to Carve: Shapes easily with hand tools after cure
  • Excellent Fairing: Creates smooth, fair surfaces efficiently
  • Reasonable Strength: Adequate for non-structural applications
  • Dark Red/Brown Color: Cures to distinctive color

Common Applications:

  • Fairing hull surfaces and imperfections
  • Filling low spots and creating smooth transitions
  • Lightweight core material and gap filling
  • Sculpting and shaping custom repairs
  • Preparing surfaces for final finishing
  • Any application requiring easy-to-sand fairing compound

Mixing Guidelines:

Add 407 Low-Density Filler to mixed epoxy resin and hardener until you achieve the desired consistency. For fairing applications, mix to a peanut butter-like consistency that spreads smoothly but doesn't sag. For filling voids, a thicker consistency may be preferred.

This 12 oz container provides substantial filler for medium to large fairing projects. The exceptionally easy-to-sand properties make it the professional's choice for achieving smooth, fair surfaces with minimal effort.

Part Number: 407-15
UPC Code: 811343011567

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