Epoxy steel putty K2 MEGA BOND B322 20 g – two-part metal-repair epoxy putty

K2 MEGA BOND B322 is a two-part epoxy steel putty supplied in a 20 g format for metal repair and bonding. The product combines a resin and hardener to form a durable, machinable and sandable compound designed for filling holes, cracks, scratches and minor surface damage on metal parts, pipes, housings and automotive components. Applied correctly, the putty cures to a rigid, steel-like mass that can be drilled, filed and painted to restore function and appearance of damaged metal surfaces.

Advantages

The putty bonds to a wide range of ferrous and non-ferrous metals and provides mechanical strength suitable for small structural repairs. Its two-component formulation ensures a controlled cure and reliable adhesion without the need for heat. Once cured, the compound is machinable and sandable, enabling precise finishing and repainting. The 20 g cartridge format is convenient for spot repairs and maintenance tasks.

Suitable for

• Repairing small holes, cracks and scratches in metal housings and panels
• Sealing leaks or repairing minor damage on metal pipes and fittings
• Restoring automotive components such as brackets, mounts and trim
• Bonding and rebuilding worn or corroded metal edges and surfaces

Key specifications

• Format: two-part epoxy putty, 20 g total mass
• Physical state before cure: malleable paste (resin and hardener components)
• Cured properties: rigid, steel-like mass that can be drilled, filed and sanded
• Adhesion: formulated for strong mechanical bonding to metal substrates
• Workability: moldable at room temperature; shaping and smoothing possible before full cure

How to use

Prepare the repair area by cleaning off oil, grease, rust and loose paint; roughen smooth surfaces for improved adhesion. Cut or remove the required amount of each component and mix thoroughly until a uniform color is achieved. Apply the mixed putty to the damaged area, pressing to ensure intimate contact and eliminating trapped air. Shape and smooth the surface with appropriate tools while the material remains workable. Allow the compound to cure fully before machining, sanding or painting according to ambient temperature and the product's cure profile.

Usage recommendations

For best results, perform repairs at moderate ambient temperatures and follow surface preparation steps to maximize adhesion. Use protective gloves and avoid inhalation of dust when sanding cured material. Test compatibility with paints and coatings on a small area before full refinishing.