Marine vessels routinely face varied and adverse operating conditions and the task of ensuring continued seaworthiness by keeping every component in working order is a true engineering challenge.

Whether the problem is erosion corrosion to rudder assemblies, kort nozzles, waterjets, damaged engine blocks, galvanic corrosion to heat exchangers, pumps, and fluid flow equipment, or concerns with health and safety Rezitech have the solution for you.

For more than 40 years Rezitech has been the sole Australian distributor for the exclusive range of Belzona repair and maintenance products and with Belzona we have been able to save our customers money, time and a lot of stress.

Belzona has a complete range of innovative repair and protection systems for all types of marine applications.

Since 2007 Rezitech has been the sole Australian distributor for Sponge-Jet®, the world’s leader of clean, dry, low dust, reusable surface preparation media and equipment.


With Belzona® and Sponge-Jet® we provide a cost effective solution to such maintenance problems by minimising downtime, labour, and expensive replacement costs.

We have introduced this technology into many of our applications, especially where OHS and the environment are priorities, as Sponge-Jet offers blast cleaning and profiling together with reduced soluble chlorides levels not seen with traditional grit blasting methods.

Not only that but using Sponge-Jet often means that other trades can continue to work in close proximity to the blast area, AND the media can be re-used up to 15 times, depending on the application, which both add up to huge cost savings for the customer.

Belzona’s comprehensive range of rapid and cold-curing marine coatings and metal repair composites has been used by the marine industry for over 60 years. With products specifically designed to withstand harsh offshore conditions and have exceptional resistance against erosion and corrosion.

Providing metal repair composites to shipyards around the world, long-term protection is proven by years of successful experience with ships and offshore structures. 

Manufactured according to the ISO 9001 quality management systems, we have approvals from classification societies from all around the world including:

  • American Bureau of Shipping
  • Bureau Veritas
  • China Classification Society
  • Germanischer Lloyd
  • Korean Register of Shipping
  • Russian Maritime Register of Shipping
  • In addition, Belzona products have received acknowledgements from the U.S. Navy and the U.K. Ministry of Defence.

Belzona’s range of high performance polymers have been designed to address many of the typical problems within the marine industry including: 

  • Rudder repair and protection;
  • Marine propulsion system protection and rebuilding;
  • Shaft in-situ repair;
  • Engine repair; and
  • Storage tank repair and protection.
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Explore the applications for the marine industry

Rudder Assemblies

Cavitation and corrosion protection
Reseating and bonding of bearings and pintle liners
Restoring pintle taper housings and protection from galvanic corrosion

Propulsion Units

Cavitation and corrosion protection for Kort nozzles and waterjets
Erosion corrosion protection for bowthrusters
Repair of sealing surfaces on CP Propellers
Cavitation erosion protection of A-frame brackets

Fluid Flow Equipment

Pump repairs
Valve repairs
Efficiency enhancing coatings
Heat exchanger tube sheet damage
Water box corrosion protection

Engines & Gearboxes

Cavitation repair and protection in engine blocks
O-ring seal housing restoration of liners
Cracked casing repairs
Noise and temperature reducing gearbox oil lubricants

Seals & Rubber Components

Repairs to bellows and expansion joints
Impact and abrasion resistance for fenders and hovercraft skirts
Hatchcover and door seals

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