OVERVIEW: The internals of a sea chest located in the engine room were heavily corroded and required refurbishment and protection against salt corrosion. This included encapsulation and effective dust extraction to prevent mechanical damage inside the engine room.
INDUSTRY
ENVIRONMENT
Sea Water
SUBSTRATE
Cast iron sea chest
CHALLENGE
The internals of a sea chest located in the engine room were heavily corroded and required refurbishment. This included encapsulation and effective dust extraction to prevent mechanical damage inside the engine room. Work had to be completed within 20 hours to prevent disruption to existing schedule.
SOLUTION
We recommended the use of RB 300 series @ 1200μm nominal thickness. The top coat applied contains a non-toxic anti-foul. Applied @ 300μm it will provide excellent protection against salt corrosion
SCOPE
Pre-abrasive blast to remove graphitised metal
Hot pressure wash and re-grit blast to ISO 8501-1 cleanliness standard with a minimum 75µm profile
Application of 3 coats of RB 300 series providing peace of mind for at least the next 10 years
Application of Copper based epoxy in two coats to prevent marine growth
PRODUCTS
RC 200 Antifoul
OUTCOME
With Chemcote’s successful application, many other components have been refurbished using similar methods. This can be done both on board, and within our fully equipped workshop located in Wollongong.
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