C-Bond Extra Thick cyanoacrylate is specifically formulated for applications requiring maximum gap filling, superior control, and extended positioning time rather than rapid penetration. Its non-sag, high-viscosity formula is ideal for bonding rough or uneven surfaces, filling small voids, repairing porous materials, and assembling components where precise adhesive placement and durable, high-strength bonds are essential.

Technical Chart

Not sure which viscosity to choose? Read our CA glue viscosity guide.

Typical Applications

• Woodworking: Filling small gaps, bonding end grain, furniture repair, knots, and trim.
• Porous materials: MDF, plywood, cork, leather, felt, and many fabrics.
• Rubber: O-rings, weatherstripping, gaskets, and rubber components.
• Plastics: ABS, PVC, acrylic, polycarbonate, and many engineering plastics (except difficult plastics like PE, PP, PTFE, and silicone unless a primer is used).
• Metal: Steel, aluminum, brass, and stainless steel when parts have a close fit or small gaps.
• Ceramics and stone: Repairing pottery, tile, marble, and decorative stone.
• Composites: Carbon fiber, fiberglass, and FRP repairs.
• Vertical surfaces: The high viscosity helps prevent running or dripping, making it ideal for overhead or vertical applications.

Best Features

• Excellent gap-filling ability.
• Non-sag formula for vertical surfaces.
• Gives a few extra seconds to align parts before full fixture.
• Works well on rough or uneven surfaces.
• Less absorbed by porous materials than thin or medium grades.

Recommended Materials

• Wood
• Metal
• Stone
• Ceramics
• Rubber
• Leather
• Most plastics
• Composite materials

Not Recommended For

• Large structural joints that experience continuous heavy loads.
• Flexible joints with constant movement.
• Polyethylene