CASE STUDY
Wastewater Tank Internal Refubishment
OVERVIEW
The old coating of the wastewater tank internals had deteriorated, was suffering from corrosion damage and had to be refurbished.
CHALLENGE
Grit blasting could not be utilised for this project.
The new coating system had to be able to withstand a pH of 10.
Due to the outside temperature of the tank, there was a possibility that the internal surface of the tank could be sweating and therefore a moisture tolerant coating had to be used.
SOLUTION
The substrate was prepared by water jetting to WJ-2/3 standard.
One stripe coat and one full coat of solvent-free, wet & rust tolerant epoxy RS 500P was applied.
This was followed by one stripe coat and one topcoat of solvent-free, wet tolerant, glassflake epoxy RA 500M.
OUTCOME
The whole process was completed within 5 days; much quicker than would have been possible using conventional paints and grit blasting.
Substantial cost savings were supported by using the chosen Chemco system.
BENEFITS
• Solvent-free
• Wet & rust tolerant
• No grit blasting required
• No humidity or dew point restrictions
• Reduced H&S and Fire Hazard
• Substantial time and cost savings
Before Application
Before Application
During Priming
During Priming
Completed Application
Completed Application
