OVERVIEW: Chemcote’s specialist team utilised good project management and the fast curing Chem-tect™ RB 300 Series to navigate various delays and get the demister back in service on time with a lifespan extension.
INDUSTRY
ENVIRONMENT
Recirculated salt water 60°C with fine particles
SUBSTRATE
Carbon steel (20mm thick)
CHALLENGE
Carry out inspection to internal lining as the work carried out overseas was not to standard as per QA documentation, carry out repairs to internal lining.
SOLUTION
We recommended RB 332, glassflake filled vinyl ester, for its quick cure time, low moisture vapour transmission rate, and excellent corrosion and electrical isolation protection in wet environments. This coating is known to provide excellent long term corrosion/erosion resistance for this environment.
SCOPE
Abrasive blasting to remove dense residue
Potassium Ferrous Cyanide to determine surface cleanliness
Grinding and weld repairs to perforations. Re-abrasive blast where necessary
1st coat of RB 332 sprayed on to highlight pitting
DFT checks done after first coat and pit filling
Re-abrasive blasted floor to remove surface corrosion
Further pit filling to ensure quality coating
Top coat applied
OUTCOME
As a result of the fast cure and good project management, the demister was back in service on time despite various delays. Coating was completed to client’s expectations and future scheduled inspections and additional tests will give a good indication of lifespan extension of demister.
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