West System 411 Microsphere Filler Blend 4LWest System 411 Microsphere Filler Blend 4L is a low density, easy sanding fairing filler designed for use with West System epoxy. Ideal for shaping, levelling, and smoothing surfaces prior to painting. It creates a lightweight compound thats perfect for fairing hulls, decks, and composite structures. Key Features Lightweight, low density fairing filler Blends easily with West System epoxy Produces smooth, easy to sand fairing compound Ideal for

making it ideal for traditional rigging setups

Integrated fluxgate compass

UV-resistant

Durable weatherproof protection

toilet flush cycles)

engineered for medium to heavy-duty rigging applications

scaled at 1:50 000

38mm (1½″)

making it highly practical for onboard setups like marker buoys

preventing them from venting outside the boat or back into living spaces

Rust and corrosion-resistant components

and fast recoat times