Stainless Steel Vessel Weld Exposure & Protective Coating
Scope of Works
Perfect Remediation was engaged by Gordon Brothers Industries to deliver surface remediation services on a stainless steel vessel at Unilever's Minto plant. The primary objective was to prepare the vessel for third-party weld repairs and ensure protective recoating post-works. The completed scope included:
- Site establishment and supervision for safe access to the vessel
- Grinding and wire brushing of welded seams to expose the full length of each weld line, plus 50mm to either side for inspection and rework
- Coordination with other trades to allow welders access post-surface prep
- Final surface cleaning and preparation prior to coating
- Application of protective coating system, using two coats of Dulux Zincanode 304 or equivalent zinc-rich epoxy primer.
Challenges
- The vessel had multiple welds of different orientations and profiles, requiring precise manual preparation to avoid damage to surrounding surfaces
- Works had to be sequenced around other specialist trades, especially welding contractors, requiring tight coordination and scheduling
- The vessel had previously been insulated, and care had to be taken not to damage any remaining fixtures or cladding support
- There were access limitations, with reliance on client-supplied scaffold and equipment.
How Perfect Remediation Overcame the Challenges
Perfect Remediation completed the project effectively by applying proven methods and clear communication:
- Used a combination of grinders, flap wheels, and wire brushes to expose the weld seams with minimal impact to surrounding metal
- Delivered the surface preparation in a single mobilisation, enabling weld contractors to begin work without delay
- Maintained continuous communication with Gordon Brothers and the site team to align on sequencing and minimise downtime
- Applied the zinc-rich epoxy coating uniformly post-welding, restoring long-term corrosion protection to the exposed areas.
Perfect Remediation acknowledges the Aboriginal and Torres Strait Islander people as Traditional Custodians of the country on which we live and work. We pay our respects to the Traditional Custodians and Elders past, present and future, and honour their connection to the land and ongoing contribution to society.
