OVERVIEW: This Mild Steel Aerobic Reactor containing effluent waste water required a cost effective coating system offering a long-term anti-corrosion solution. Priming with RS 500P, followed by RA 500 top coat will ensure 15 years service life.
INDUSTRY
ENVIRONMENT
Effluent Waste Water – pH 9
SUBSTRATE
Mild Steel Structure
CHALLENGE
To provide a cost effective coating system offering a long-term anti-corrosion solution that will ensure in excess of 15 years service life for an aerobic reactor
SOLUTION
We recommended priming with RS 500P, followed by RA 500 top coat
SCOPE
Abrasive blast to AS 1627.4 with a nominal 50-75µm profile
Application of 1 coat of RS 500P with a nominal DFT of 60-100µm
Check film thickness in a grid pattern (between coats)
Strip coat using RA 500 Series on all welds and changes in direction to ensure coverage
Application of 1 coat of RA 500 Series with a nominal total DFT of 300µm
Carry out holiday test at 1.5kV to ensure no faults
Demobilise from site and removal of trade waste
PRODUCTS
Epo-chem™ RS 500P – Wet & Rust tolerant 100% solids epoxy,
Epo-chem™ RA 500 – Wet & Rust tolerant glass flake filled 100% solids epoxy,
OUTCOME
Application costs for the aerobic reactor were kept to a minimum as the specified coating systems, RS 500P & RA 500 both feature moisture tolerant qualities during application. For this reason humidity and dew point are not a concern, negating the need for de-humidification. The coating system is easy to maintain with an expected life in excess of 15 years.
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