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Fill cracks, knots, and voids in as fast as 30 seconds

Using Starbond’s Black CA glue and accelerator, you can fill and sand small voids in as fast as 30 seconds! (But, it can take as long as 10 minutes for slightly larger knots and voids).

Works faster and better than epoxy and wood filler

The conventional method of filling voids is with epoxy glue, which can take as fast as 30 minutes to over 24 hours. It’s almost a sin to let this much time go wasted. Using Starbond’s Knot Filling System, you can fill and sand small voids in as fast as 30 seconds! Roughly 100X more time saved using Starbond Knot Filling System over epoxy.

Easy to use, easy toclean up

Starbond colored CA glues are recommended for cracks and voids that are less than 6" in length, 0.5" in width, and 0.5" in depth.

Start by filling the void with Starbond Colored CA Glue. Spray accelerator to speed up the drying time of the glue. Wait 30 seconds to allow the glue to cure, and repeat steps as needed! Allow an additional 2-5 minutes for the glue to fully cure, and lastly, sand down any high spots to ensure that the filled void is flush with the surface!

Starbond Brown Medium-Thick CA glue

Starbond Brown Medium-Thick CA Glue is for general-purpose use and so much more! With its coffee “dark brown” color, there is no need to introduce sawdust and coloring agents to your other CA glues when filling voids! Our BR-500 super glue is the ideal adhesive for bonding close-fitting parts, filling bug holes and knots, and concealing imperfections in wood. We also recommend pairing this glue to highlight and contrast light-colored woods, for perfect inlays, crack repairs, and sanding to a high-polish finish.

Use Starbond Brown Medium-Thick CA for:

Glue and
repair in

Conceal minor imperfections in darker wood such as walnut

Fill cracks, inclusions, voids, and knots in wood

Use Starbond Black Medium-Thick CA for:

Create black accent designs on spalted wood and other projects

Glue tires
and lock
on R/C cars

Fill cracks, inclusions, voids, and knots in wood

Starbond Black Medium-Thick CA glue

Starbond Black Medium-Thick CA Glue is a flexible, rubber-strengthened, super glue that dries jet black. This amazing adhesive has impact and shock absorbing properties, and can expand and contract with its surrounding environment, making it the perfect glue for reconing speakers, hobby R/C car tires, woodturning inlays, and heavy-duty bonding. It’s also ideal for hiding imperfections, filling dark voids, and accenting specific areas in your projects, particularly in spalted wood. KBL-500 can also be sanded down and polished to a high-gloss finish and will not crack in a malleable environment!

Black or Brown? Choose your superglue

2 oz. Black CA + 6 oz. Aerosol Accelerator Bundle

(127 reviews)



User Review:

“This combo is perfect for almost any project! We have filled pin holes left in epoxy, to fill knots, voids and cracks! Dries almost install once you spray the accelerator on it and you can sand right away! This is a true time saver in the shop!”

L&S Customs

2 oz. “Dark Brown” Medium-Thick + 6 oz. Aerosol Accelerator Bundle

(48 reviews)



User Review:

“This products works wonders in small cracks and knot holes!! Dries in seconds and sandy easily”


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We value the full customer experience and if you are not happy with a product, we will take it back.

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