Belzona Mechanical Repair Solutions
Versatile, cold-applied solutions for rebuilding, bonding, sealing and protecting industrial equipment.
Belzona Paste-Grade Solutions
Belzona paste-grade products are cold-applied industrial repair composites used to rebuild worn metal, fill corrosion damage, bond components, seal leaks and restore damaged equipment.
- High Compressive Strength
- High Adhesion
- Machinable
- No Shrinkage
Belzona paste-grade composites can be used to rebuild worn or damaged shaft surfaces, restore keyway geometry and correct areas affected by scoring, corrosion or mechanical wear. Repairs can be formed or machined to achieve the required dimensions, helping extend component service life and avoid costly replacement.
How to repair a worn shaft
How to repair a damaged shaft using machining techniques
How to repair a shaft using an injection technique
How to repair an oversized keyway
CASE STUDIES
HYDRO POWER STATION SHAFT REPAIR
In-situ repair of a damaged shaft using Belzona
BELZONA REPAIRS AND PROTECTS PROPELLER SHAFTS
Repair of cavitation damage on the propeller shaft
BELZONA REPAIRS SHIPS GENERATOR SHAFT
Worn generator drive shaft located in a narrow, confined place.
BELZONA REPAIRS SHIPS GENERATOR SHAFT
Worn generator drive shaft located in a narrow, confined place.
Belzona paste-grade composites can be formed in situ to rebuild damaged flange faces and restore sealing geometry without extensive machining. They can also be used to bond nozzle inserts, helping restore integrity and extend service life while avoiding welding, hot work and component replacement.
Flange repair and protection with Belzona 1111
Flange face forming and protection with Belzona
CASE STUDIES
HYDRO POWER STATION SHAFT REPAIR
In-situ repair of a damaged shaft using BelzonaBELZONA REPAIRS AND PROTECTS PROPELLER SHAFTS
Repair of cavitation damage on the propeller shaftBELZONA REPAIRS SHIPS GENERATOR SHAFT
Worn generator drive shaft located in a narrow, confined place.
BELZONA REPAIRS SHIPS GENERATOR SHAFT
Worn generator drive shaft located in a narrow, confined place.
Belzona paste-grade composites can be used to bond nozzle inserts, helping restore integrity and extend service life while avoiding welding, hot work and component replacement.
How to protect the nozzle interior using Belzona
How to create a pre-formed nozzle insert
CASE STUDIES
HYDRO POWER STATION SHAFT REPAIR
In-situ repair of a damaged shaft using BelzonaBELZONA REPAIRS AND PROTECTS PROPELLER SHAFTS
Repair of cavitation damage on the propeller shaftBELZONA REPAIRS SHIPS GENERATOR SHAFT
Worn generator drive shaft located in a narrow, confined place.
BELZONA REPAIRS SHIPS GENERATOR SHAFT
Worn generator drive shaft located in a narrow, confined place.
Belzona paste-grade composites can be used to rebuild oversized or damaged bearing housings, restore bush seating areas and repair worn bearing surfaces. The material can be formed or machined to the required dimensions, helping recover accurate component fit, alignment and reliable operation without replacement.
CASE STUDIES
Belzona paste-grade composites can be formed in place to fill gaps beneath machinery, bearing housings and support surfaces. The cured material creates a precise, load-bearing fit that helps distribute loads evenly, improve alignment and avoid the need for custom-machined metal shims.
CASE STUDIES
CHOCKING TO DRIVE SYSTEM ON FISHING BOAT
Chocking to maintain the alignment and resist all stress during operation
Belzona paste-grade composites can be used to rebuild surfaces affected by corrosion, erosion and localised metal loss. The material fills pits and irregularities, restores the required profile and can provide a sound surface for further protection, helping extend equipment service life without welding or replacement.
CASE STUDIES
BALL MILL RE-LINING
Refurbishment and Re-lining of a Ball Mill Shell
Belzona paste-grade composites can be used to create strong, durable bonds between metal components while filling gaps and surface irregularities. Cold bonding avoids the heat, sparks and distortion associated with welding, making it suitable for in-situ repairs, reinforcement and equipment modifications.
How to bond metal brackets to a tank
How to attach a ladder to a tank without welding
Cold bonding solution for deck reinforcement
Cold bonding vs welding
CASE STUDIES
Belzona paste-grade composites can be combined with reinforcement materials to form durable patches over localised corrosion, cracks, holes and areas of metal loss. These cold-applied repairs help restore integrity, reinforce weakened areas and extend equipment service life without welding or component replacement.
Repair tank and vessel metal loss with a repair patch
Belzona composite patch
CASE STUDIES
TANK PATCH REPAIR
Belzona SuperWrap II Composite Patch Tank Repair
Belzona paste-grade composites can be used to seal localised leaks, holes and damaged joints on industrial equipment. Depending on the application, repairs can be reinforced with tape or bonded patches, providing a practical in-situ solution that helps minimise downtime and avoid hot work.
How to stop a live pipe leak with Belzona 1212
Rapid curing adhesive technology for leak sealing
How to repair a transformer oil leak
How to repair a pipe underwater
CASE STUDIES
BELZONA 1212 REPAIRS CRACKED TRANSFORMER FIN
Repair of a crack in the top edge of the oil filled transformer radiator fin
Belzona paste-grade composites can be used to repair cracked metal by filling the damaged area and, where required, incorporating reinforcement to strengthen the repair. This cold-applied approach can restore integrity without welding or hot work, helping reduce downtime and avoid further heat-related damage.
How to repair a cracked engine block
How to repair cracks and leaks on PP/PE pipes
CASE STUDIES
Belzona paste-grade composites can be used to rebuild damaged threaded areas by filling the worn section and reforming the original thread profile. This cold-applied repair can restore fastening integrity without welding, heat or component replacement.
Thread reforming with Belzona 1111
Stripped thread repair
CASE STUDIES
Belzona paste-grade composites can be applied to damaged welds, seams and joints to seal defects and restore integrity without welding or hot work. Where required, the repair can be reinforced to help strengthen weakened areas and extend the service life of the equipment.
How to repair a weld seam
CASE STUDIES
Frequently asked questions
What are Belzona paste-grade solutions used for?
Belzona paste-grade solutions are cold-applied industrial repair composites used to rebuild worn or damaged metal, fill corrosion and erosion damage, bond components, seal leaks and restore equipment. Typical applications include shaft repair, flange face restoration, bearing housing repair, shimming, metal bonding, crack repair and rebuilding damaged threads. Once cured, suitable Belzona paste-grade materials can be formed or machined to restore the required component dimensions.
Can Belzona be used to repair worn or damaged shafts?
Yes. Belzona paste-grade composites can be used to repair worn, scored, corroded or mechanically damaged shafts without replacing the entire component. The material can be applied using forming, machining or injection techniques to rebuild the damaged area to the required dimensions. This approach can restore shaft geometry and extend component service life while reducing the need for costly replacement.
Can Belzona repair bearing housings, bushes and damaged seating areas?
Yes. Belzona paste-grade composites can be used to rebuild oversized or damaged bearing housings, restore bush seating areas and repair worn bearing surfaces. The material can be formed or machined to achieve the required dimensions, helping restore accurate component fit and alignment. Belzona can also be used for equipment shimming and chocking, creating a precise load-bearing fit beneath machinery, bearing housings and support surfaces.
What is the difference between Belzona 1111 and Belzona 1212?
Belzona 1111 is a paste-grade repair composite with excellent adhesion that can be fully machined after curing, making it suitable for applications such as rebuilding shafts, flange faces, threads and other damaged metallic surfaces. Belzona 1212 is a fast-curing, surface-tolerant repair material suited to situations where rapid repairs or challenging surface conditions are important, including certain leak-sealing applications. Product selection should be based on the specific repair conditions and operating requirements.
Can Belzona paste-grade composites be used instead of welding?
For many repair and bonding applications, Belzona paste-grade composites provide a cold-applied alternative to welding and other hot work. They can be used to bond metal components, reinforce damaged areas, seal defects and rebuild metal loss without introducing the heat, sparks or distortion associated with welding. This makes Belzona particularly useful for in-situ industrial repairs where hot work, extensive machining or component replacement may be undesirable.
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