image of a hydraulic tank fitted on a dredge

Blast/Paint Hydraulic Tank

Abrasive Blasting and Industrial Coating of a Hydraulic Oil Tank for the refurbishment of Dredge 16, Nu Phoenix.

This is the second last stage of the process for the steel tank fabrication to be installed on Neumann Dredge 16, named Nu Phoenix.  Our highly-experienced team member Mark does the sandblasting, while our top-gun spray painter Ben is like a surgeon with his motion and precision.

“The tank was sandblasted inside and externally to Class 2.5… near-white sandblast clean.”

In the previous steps of the process, which began at the desk of our Neumann Engineering Services team, who produced the technical drawings and conducted simulation pressure testing, the drawings and the steel material then arrived at the Neumann Fabrication workshop for our boilermaker to fabricate the tank.  You can read about tank fabrication in this article with our boilermaker Steve.  It was then moved to our Neumann Industrial Coatings unit for sandblasting and painting.

Industrial Sandblasting and Coatings manager Peter explained the process once the hydraulic tank was delivered to the workshop. 

“I am very proud of my team’s professionalism and dedication to quality”

“Mild steel surface preparation requires that all surfaces are to be clean, dry and free from chalking and contamination.  The tank was sandblasted inside and out to Class 2.5, which is a 1-hour process for a tank of that size, and it is a near-white sandblast clean which strips rust and foreign particles.  On the tank then remain very minor traces of rust and foreign particles in the form of spots or stripes.”

“External of the tank was primed with Wattyl Epinamel PR250 Epoxy Primer to provide a superior coating to the steel.  This was also a 1-hour process.  The tank has a removable lid, allowing access to the internal sections painted with Wattyl TL710; a high solids polyamine adduct-cured chemical resistant epoxy tank lining.”

“As the final stage of the painting, after the exterior was primed, it was then spray-painted with Wattyl DTM985, a direct-to-metal high-build epoxy thickness of 350 microns.  The entire process was done over 24 hours to allow proper curing and was then delivered to the Plant business unit for assembly on the Nu Phoenix dredge.  I am very proud of my team’s professionalism and dedication to quality,” said Peter, the Industrial Sandblasting and Coatings business unit manager of Neumann Contractors.

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