The Challenge

On the water, keeping a vessel in service is everything — hauling out for repairs is expensive and disruptive, and hot work aboard is heavily restricted. The marine environment is uniquely harsh, with constant moisture, immersion, and vibration attacking every surface, and standard coatings will not bond to the damp, contaminated steel that is unavoidable on lakes and rivers.

Engines and casings, shafts and stern gear, hull plate, decks, ballast and cargo tanks, bilges, and rubber components all corrode, erode, and wear in marine service. The most vulnerable areas are frequently those hardest to access and impossible to keep dry.

Belzona surface-tolerant and underwater-curing composites and coatings are built for marine conditions — bonding to damp and wetted steel and curing even underwater. Rumford Industrial Group applies them afloat and in service, eliminating hot work and avoiding dry-dock wherever possible.

Belzona Solutions for Marine

Propulsion System & Shaft Repair

Rudders, propellers, kort nozzles, jet tubes, and shafts suffer cavitation, erosion, and corrosion from continuous underwater operation, requiring metal rebuilding and resurfacing materials that reclaim lost substrate and resist future attack.

Engine Repair & Protection

Marine engines suffer cracked casings, cooling problems, and heavy cavitation and corrosion around cylinder blocks and liners, requiring high-temperature repair composites and coatings that reclaim damaged areas and extend engine life.

Shimming & Chocking

Heavy propulsion systems, auxiliary machinery, and other equipment require precise alignment and anchorage under constant pressure, impact, and vibration, requiring pourable chocking and leveling compounds that provide a reliable foundation.

Rubber Component Repair & Sealing

Fenders, buoys, bellows, and hoses suffer rips and tears from in-service deterioration that can force premature decommissioning, requiring cold-applied flexible polyurethanes that restore serviceable condition at a fraction of replacement cost.

Storage Tank Repair & Protection

Storage tanks suffer emergency leaks on wet and oily surfaces along with chemical attack and corrosion damage, requiring potable water-approved, chemically resistant repair materials.

Emergency/Field Water Repairs

Pipes, engines, shafts, and hydraulic rams face unplanned maintenance needs on wet, oil-contaminated, and underwater surfaces, requiring fast-curing epoxy composites with extended working life for in-situ application.

Common Asset Areas

Engines & Casings

Marine engines suffer cracked casings and cooling problems, with heavy cavitation and corrosion around cylinder blocks and liners, requiring high-temperature repair composites and coatings that reclaim damaged areas and extend engine life. Learn More →

Gaskets, Seals and Shims

Heavy propulsion systems and auxiliary machinery require precise alignment and anchorage under constant pressure, impact, and vibration, requiring pourable chocking and leveling compounds that provide a reliable foundation. Learn More →

Valves, Pipes, & Fittings

Pipework faces unplanned damage from wet, oil-contaminated, and underwater conditions, requiring fast-curing epoxy composites for in-situ repair without dry-docking. Learn More →

Heat Exchangers

Marine heat exchangers suffer erosion and corrosion from continuous exposure to water and process fluids, requiring corrosion-resistant repair materials and coatings. Learn More →

Mechanical Power Transmission

Shafts operate under high mechanical forces that lead to damage and wear, requiring in-situ metal rebuilding materials and durable coatings that protect tail shafts from erosive and corrosive effects. Learn More →

Tanks & Chemical Containment

Storage tanks suffer emergency leaks on wet and oily surfaces along with chemical attack and corrosion damage, requiring potable water-approved, chemically resistant repair materials. Learn More →

Ships & Offshore Structures

Rudders, propellers, kort nozzles, and jet tubes suffer cavitation, erosion, and corrosion from continuous underwater operation, requiring metal rebuilding and resurfacing materials that reclaim lost substrate. Learn More →

Pumps

Marine pumps suffer erosion and corrosion from continuous fluid handling, requiring repair composites and coatings that restore original profiles and extend service life. Learn More →

Fans, Blowers, & Compressors

Exhaust and turbo blowers suffer wear and corrosion from continuous operation, requiring durable repair coatings that extend equipment life. Learn More →

View All Asset Areas →

Marine Equipment We Repair & Protect

Specific assets we service across the marine industry.

Equipment We Service