CASE STUDY
NANOPREP PROVIDES UNIQUE SOLUTION FOR
ECO-FRIENDLY SURFACE PREPARATION
Perfect solution for common corrosion issues on pylons
Industry: Marine
Application: Protective coating on corroded and submerged pier pylons
Products: NanoPrep, Belzona 5831, Wattyl DTM985
Customer Location: : Far North Queensland, Australia
Application Date: July 2023
Pier pylons before, during and after corrosion protection work
PROBLEM
A common challenge in addressing corrosion on pier pylons or any structure near water is that you are unable to perform abrasive blasting. Most protective coatings rely on this type of surface preparation to ensure long-term performance in these harsh environments. This is particularly difficult in the tidal zone where the pylons will be submerged in water within hours.
Until now, there have been no products on the market that provide a good long-term solution to this problem.
Introducing NanoPrep!
APPLICATION
NanoPrep provides the perfect eco-friendly surface preparation solution. The product converts rust into an iron phosphate layer that adheres very strongly to the substrate through nanotechnology. The product also has high tolerance to chlorides due to its acidic base which neutralises the chlorides. This provides a high quality surface preparation for appropriate coatings to be used.
As the tide goes down, the pylons are pressure washed to remove loose rust scale. One coat of NanoPrep is applied and left for two hours to dry. Belzona 5831 moisture tolerant epoxy is then applied, which can cure underwater as the tide rises. The next day, a gentle pressure wash to remove surface chlorides and then a thin coat of Nanoprep is applied and left for two hours. The final coat of Wattyl DTM985 is then applied for UV and immersion protection.
Job done!
Original Pylon
NanoPrep Coating
Belzona 5831
Wattyl DTM985
OUTCOME
This application was completed 18 months ago at the time of publishing and is still in perfect condition.
Products
NanoPrep’s surface preparation technology allows industrial coating application in areas where it is difficult, cost prohibitive or impossible to perform surface preparation by abrasive grit blasting.
NanoPrep
NanoPrep is a one component, waterborne, acrylic co-polymer composition that reacts and cross-links with rusted steel surfaces, clean steel, painted steel, aluminium, and/or galvanised steel surfaces creating superior anticorrosive properties. NanoPrep is non-hazardous, environmentally friendly and non-flammable. Can be applied to damp or dry surfaces as a primer or finish coat.
About Rezitech
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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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!
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