Knot Filler System (Black • Brown CA Glue • 6 oz Accelerator)

The Starbond Knot Filler System is the professional’s all-in-one solution for filling knots, cracks, voids, and defects in hardwoods. Designed specifically for woodworkers and woodturners, this system combines two of Starbond’s best-performing medium-thick CA glues (500 cPs)—Black Medium-Thick and Dark Brown Medium-Thick—with the Starbond 6 oz Aerosol Accelerator for instant, flawless curing.

The included Black Medium-Thick CA Glue is rubber-toughened and engineered for structural reinforcement, making it ideal for filling deep cracks, stabilizing knots, and blending seamlessly into dark woods such as walnut, wenge, ebony, and dark epoxy accents.

The Dark Brown Medium-Thick CA Glue cures into a rich coffee-brown tone that blends naturally into walnut and other medium-to-dark hardwoods. It’s perfect for cosmetic blending, warm-toned crack repair, and creating fills that look intentional and natural.

Both adhesives feature a 500 cPs medium-thick viscosity, providing clean, predictable flow suitable for void filling while preventing excessive runoff. When paired with the included acetone-based Starbond Accelerator, fills cure instantly—creating sand-ready surfaces with zero sinking, minimal blooming, and excellent leveling. Accelerator is highly recommended (almost mandatory) for knot stabilization, deep void work, and turning applications, where immediate structure is required.

Woodworkers use this system for live-edge slab repair, turning blank stabilization, furniture restoration, table cracks, guitar body repairs, and structural reinforcement. The combination of fast-curing CA and color-matched pigments delivers fills that are durable, clean, and visually cohesive with the surrounding grain.

Whether you’re a furniture maker, turner, luthier, or restoration professional, the Starbond Knot Filler System gives you everything you need for fast, durable, color-consistent filling—without the waiting, mess, or inconsistency of traditional fillers or slow-curing adhesives.