Starbond KBL-500 Black "Knot Filler" Medium Thick Glue is a flexible, rubber strengthened, superglue that dries jet black. THis amazing adhesive has impact and shock absorbing properties, and can expand and contract with its surrounding environment. It's ideal for hiding imperfections, heavy duty bonding, filling dark voids, and accenting specific areas in your projects. 
 
PREMIUM CYANOACRYLATE SUPER GLUE - LAB TESTED FOR OPTIMAL PERFORMANCE: High performance industrial grade adhesive. Black Medium-Thick CA is used to bond parts, with focus on impact and shock absorbance qualities.
EXTRA SUPPLIES:
2 ounce includes: (2) applicator caps, (1) clog-free stopper, and a bag of micro-tips for precision.
STRONG "BONDING AND FILLING" ADHESIVE: ideal for spalted wood and burl, hiding imperfections, filling dark voids, and accenting specific areas in your projects.
PROPERTIES: Viscosity: 500 cPs (meaning the thickness of the liquid is similar to that of syrup). Penetrating abilities of up to 0.008" in size. Bonding time: 40-60 seconds.
SUPERIOR SHELF LIFE: When well kept, our product can last several years in a cold environment. Just make sure to store the bottle under 40°F before AND after use to QUALIFY FOR OUR 20 month shelf life warranty. If product does not last, we will replace that bottle free of charge.