Industry:
Date:
April 2010,
Substrate:
Carbon Steel Rig Decks,
Products:
Environment:
Wet & Humid, atmospheric moisture
Challenge:
Heavily corroded steel rig decks would have taken 12 months to re-surface with riding crew permanently on board. Corrosion would have re-appeared upon completion due to high humidity and rain conditions.
The Rig Ultra high water blasting One section completed
Chemco’s Solution:
Chemco Australia recommended the use of moisture surface tolerant glass-flake filled epoxies, applicable to wet and corroded surfaces providing long term corrosion protection.
Scope:
- 15,000-19,000 psi water blast with small footprint machine
- Wet abrasive blasting to reduce metallic salt content
- Perforations were found in accommodation quarters and other critical areas
- Applied 1 coat RS 500P and laminate using 600gm/m2 multi-directional matting
- Applied 1 coat RA 500M with a nominal thickness of 500μm-700μm
Results:
Application was done within client’s time-frame and also came with a 10 year warranty, much to the rig manager and asset owner’s satisfaction. Asset owner saved 12 months of downtime and re-coating costs. An estimated 20,000 m² of rig deck has been coated to date. Chemco Australia has also been awarded continuous work on the rest of the problem areas and other rigs from the same client.
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