Damaged, cracked and eroded pump volute repaired using Belzona 1111 and coated with Belzona 1321

Industry: Water & Wastewater
Application: Pump Volute Repair
Products: Belzona 1111 (Super Metal), Belzona 1321 (Ceramic S-Metal)
Customer Location: : Australia
Application Date: May 2021


An engineering company faced the challenge of repairing a damaged, cracked, and eroded pump volute. Despite their best efforts, they were unable to obtain the appropriate material for welding, leaving the customer with the prospect of replacing the entire unit.

The replacement cost was very high and would’ve resulted in a long lead time required for ordering a replacement pump from overseas. Fortunately, Belzona emerged as a highly cost-effective and time-saving alternative solution.

Pump volute damaged from erosion with a cracked housing
Pump Volute damaged from erosion and cracked housing
Repaired and coated pump volute
Pump volute repair/coating complete and external paint for an “as new” finish


The volute was cleaned, abrasive blasted to a S.A 2.5 (75 micron) standard, repaired and rebuilt using Belzona paste grade product followed but a protective coating to ensure no damage would be experienced during future operation thus extending the life of the pump once back in service.
Eroded and cracked pump volute
Eroded and cracked area
Surface preparation carried out using abrasive blasting.
Pump volute rebuilt using Belzona 1111 and coated with Belzona 1321


Given the only option was replacement at a high cost, Belzona was the logical solution resulting in substantial cost savings and a quick turnaround for the customer.


Belzona’s wide range of epoxy-based metal repair composites and high temperature coatings and linings has been used in the water and wastewater industry since the late 1970s.

Belzona 1111 (Super Metal)
A 2-part repair composite for metal repair and resurfacing based on solvent-free epoxy resin reinforced with silicon steel alloy. This repair material will not corrode and resists a wide range of chemicals. It is easy to mix and apply without the need of specialist tools and can be machined using conventional tools.

Belzona 1321 (Ceramic S-Metal)
A 2-part ceramic filled epoxy coating designed to provide erosion and corrosion resistance of metal surfaces. This solvent-free epoxy coating has outstanding chemical resistance and will bond to almost any rigid surface. Due to its high compressive strength it can be also used to create a perfect shim. This material is easy to mix and apply without the need for specialist tools and it cures at room temperature eliminating the need for hot work.

About Rezitech

Established in 1968, Rezitech is the sole Australian Distributor for Belzona. Rezitech offers a comprehensive range of industrial protective coatings and epoxy metal repair composites to many different industries including: oil and gas, mining, power, water and waste water, pulp and paper, marine, manufacturing among others.

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We value growth and innovation within the maintenance solutions industry

Our Mission

To provide industry with easier maintenance solutions that provide cost effective, efficient and long lasting results for our valued clients. To provide an integrated industry service by striving for Rezitech being a truly complete solutions provider!

Our Values

We value the needs of our clients and place a huge emphasis on providing specialist skills and knowledge.
From engineering to fitting, blasting or coating to sales, administration and customer service, we highly value our organisation and encourage diversity andgrowth to benefit our client and our team of people.

Our Vision

To strive for excellence in our delivery of high quality industrial maintenance solutions. To be our clients’ preferred choice when it comes to solving all of their maintenance and new pump needs while helping to reduce their carbon imprint.

Health and Safety

Rezitech is committed to ensuring the health, safety and welfare of its employees, contractors, visitors and customers who may be affected by Rezitech’s operations. We strive to pursue standards of safety that meet and exceed statutory duties.

Community & Environment

While providing solutions for our clients Rezitech focuses on identifying ways to improve business environmental performance while increasing productivity and reducing costs of production for the benefit our clients and hence the community.

The Future

To continue to strive for excellence! To continue to lead the way in industrial maintenance solutions and services and provide our clientele with high quality, complete and reliable products and services.

Rezitech’s mission is to make its liquid ring vacuum pump expertise available to sugar mills, paper mills and process industries worldwide. We currently export to:

  • Fiji
  • Thailand
  • Mauritius
  • Indonesia
  • United Kingdom
  • Phillipines
  • Malaysia
  • New Zealand
  • Papua New Guinea

We are constantly on the look out for new export opportunities and new countries to export to Rezitech places an emphasis on the development of export business worldwide.

For further information on a Flowtech Distributorship please contact us.

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