Corrosion Prevention That Starts at the Coating
Cathodic protection is your backup system. When the primary coating barrier is correctly selected and applied, CP does not have to carry the load.
Discuss Corrosion PreventionExternal Corrosion
Soil-side degradation through primary coating barriers matched to actual soil chemistry and drainage conditions — not generic soil class assumptions.
CP Integration
Certain coating systems — particularly thick polyolefin types — can shield cathodic protection current at holidays, creating accelerated corrosion at the most vulnerable points.
Internal Considerations
Understanding flow characteristics, H2S/CO2 partial pressures, and internal lining requirements for gas and liquid product lines.
Why the Coating Determines Corrosion Outcome
When a coating fails due to poor selection or application errors, cathodic protection current concentrates at holidays and disbondment zones, accelerating steel degradation precisely where the primary barrier has already given out.
Operators then increase CP current to compensate — which can accelerate hydrogen embrittlement on high-strength pipe grades and create overprotection issues at adjacent metallic structures.
What We Address
- — Coating selection to minimize cathodic shielding risk
- — Field joint systems that do not create holiday patterns
- — Application quality that eliminates disbondment initiation sites
- — Lifecycle planning so the primary barrier stays intact
Inspection Stops Failures Before They Start
How we catch coating defects during application rather than after the pipeline is in service.
Is your coating system doing its job?
A CP system that is working harder than it should be is a signal that the primary barrier has issues. We evaluate the coating side of the equation.
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