OVERVIEW: Highly corroded carbon steel decks would have taken 12 months to re-surface with riding crew permanently on board. Corrosion would have re-appeared upon completion under high humidity and rain conditions. Chemcote applied wet & surface tolerant coatings with minimal disruption to the everyday activities
INDUSTRY
ENVIRONMENT
Hot and humid, sea mist
SUBSTRATE
Structural Steel
CHALLENGE
Highly corroded carbon steel decks would have taken 12 months to re-surface with riding crew permanently on board. Corrosion would have re-appeared upon completion under high humidity and rain conditions.
SOLUTION
Chemcote’s application of wet & surface tolerant coatings was carried out with minimal disruption to the everyday activities and came with a 10 year warranty, much to the rig manager and asset owner’s satisfaction
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 laminated using 600gm/m2 multi-directional matting
Applied 1 coat RA 500M with a nominal thickness of 500μm—700μm
PRODUCTS
OUTCOME
Application was complete within client’s time frame, and asset owner also saved 12 months of downtime and repetitive painting costs. Chemcote has been awarded continuous work on the rest of the problem areas and other rigs from the same client.
RELATED CASE STUDIES
Air Receiver Restoration for Long-Term Durability
Pitting corrosion near shaft landing After first abrasive blasting After 2nd Abrasive blast holes were found requiring composite reinforcement Filling void in difficult to reach
High Performing Replacement for 316L SS
On inspection flange corrosion Deep pitting on forged section Application of 1st coat Ready to be put into service for 25+ years of life OVERVIEW:
Power Station Debris Filter Lining Repair
Damage to existing rubber lining Internal void to be filled in around the circumference of the screen Close up of repair area for the full