OVERVIEW: Chemcote has a 14 year ongoing relationship with this customer to perform maintenance and overhaul work. Regular inspections allow us to document the status of the assets and make recommendations about further servicing. This continual monitoring and timely application of protection has successfully reduced long term maintenance costs for our customer. The case notes below describe the latest co-ordinated overhaul carried out in 2020.
INDUSTRY
ENVIRONMENT
Wet blast furnace gas, from 20-40°C
SUBSTRATE
Steel outlet and inlet spools, flange faces, shut off valves, turbine casing components and manway covers
CHALLENGE
The overhaul was coordinated and planned for the completion of some components in Chemcote’s workshop
On-site work was carried out by setting up appropriate containment and navigating difficult to access areas to achieve thorough cleaning and surface preparation
SOLUTION
Apply Chem-tect RB 364 series to the internals of the pipework and casings in 2 coats where possible
This glassflake filled vinyl ester has proven to be most suitable for applications where good corrosion resistance and excellent mechanical properties are required
SCOPE
Full treatment where required;
Pressure wash, abrasive blast internals and externals
Full abrasive blasting was carried out on internals on-site for full refurbishment
Seal redundant holes and split rings using polyurethane
mechanical preparation and small touch-up repair
PRODUCTS
Epo-chem™ RL 500PF externally
Chem-tect™ RB 364 to coat internals
Epo-Chem™ RW 500 for spot repairs
Reinforcement using Kevlar
Spot repairs using Ind-Cote on struts
OUTCOME
Chemcote has successfully reduced long term maintenance costs by carrying out intermittent inspections and documenting recommendations for coating systems used over the 14 year service duty
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