Tank Cathodic Protection, Linings & Overfill: Api 651/652
Published 7/2026
MP4 | Video: h264, 1920×1080 | Audio: AAC, 44.1 KHz, 2 Ch
Language: English | Duration: 3h 41m | Size: 1.81 GB
Protect tank bottoms and prevent releases – CP design, internal linings, API 2350 overfill protection & leak detection
What you’ll learn
Design a cathodic protection system for a tank bottom – galvanic and impressed current, anode selection, current demand and rectifier sizing
Apply the minus 850 millivolt and 100 millivolt protection criteria and interpret an instant-off potential survey correctly
Build an API 2350 overfill prevention system – tank category, levels of concern, response time and independent protection layers
Specify an internal lining to API 652 – material selection, surface preparation, film thickness and holiday testing
Diagnose the mechanisms that destroy tank bottoms – soil-side, product-side, microbiologically influenced and stray current corrosion
Use qualifying protection systems to extend API 653 internal inspection intervals and document the technical justification
Specify release prevention barriers, double bottoms, interstitial monitoring and leak detection systems
Troubleshoot underprotecting CP systems and diagnose lining failures from their appearance
Design secondary containment and meet environmental compliance and groundwater protection requirements
Build, audit and demonstrate the effectiveness of an integrated tank protection programme
Requirements
No prior corrosion or cathodic protection knowledge is required – the electrochemistry is built from first principles
Any engineering or technical background is enough to follow the course
Helpful but not essential: some exposure to storage tanks, terminals or plant inspection
Useful alongside the course but not required: copies of API 651, API 652, API 2350 and API 653
No software or purchases needed – this is an applied, standards-grounded course
Description
Tanks fail from the bottom. It is the one part you cannot see, cannot easily inspect, and cannot repair without taking the tank out of service and cutting the floor out.
Soil-side corrosion is the dominant failure mode for aboveground storage tanks, and it happens in a place no routine inspection reaches. Meanwhile overfill – a completely different failure mode – has produced some of the most destructive incidents in the industry’s history. Buncefield was an overfill.
This course covers the three standards that address both problems, and it treats them as one discipline: keeping product inside the tank.
WHAT YOU WILL MASTER
Five sections cover the corrosion mechanisms that destroy tank bottoms, cathodic protection design to API 651, internal linings and coatings to API 652, overfill prevention to API 2350, and release prevention barriers and programme management.
You will size a cathodic protection system – galvanic and impressed current, anode selection, current demand and rectifier sizing. You will apply the minus 850 millivolt and 100 millivolt criteria and read a potential survey correctly. You will specify a lining that will actually survive immersion service, including the surface preparation that most lining failures trace back to. And you will build an API 2350 overfill prevention system from tank category through levels of concern to response time.
THE INSPECTION INTERVAL ARGUMENT
There is a direct commercial case here. API 653 internal inspection intervals depend heavily on what protection is in place. A qualifying cathodic protection system, a qualifying lining, or a release prevention barrier can each extend the interval substantially – and a tank that stays in service is a tank that keeps earning. This course shows how the protection strategy and the inspection strategy are the same decision.
A CORPORATE COMPLIANCE SUBJECT
Overfill prevention and release prevention are not optional engineering preferences. They are regulated, audited, and personally consequential for duty holders. This is the knowledge that gets checked.
WHO THIS IS FOR
Corrosion, integrity and inspection engineers responsible for tank bottom life; terminal and operations engineers accountable for overfill prevention; HSE and compliance staff; API 653 holders who need the protection knowledge their certification assumes; and project engineers specifying protection systems on new tanks.
WHAT YOU GET
Structured on-demand video across 20 focused lessons and five sections, section quizzes and a final exam, lifetime access on mobile and TV, a certificate of completion, and Udemy’s 30-day money-back guarantee.
No prior corrosion or cathodic protection knowledge is required – the electrochemistry is built from first principles for engineers, not chemists.
Enrol now and stop guessing at what is happening under your tanks.
Who this course is for
Corrosion, integrity and inspection engineers responsible for tank bottom life and protection systems
Terminal, operations and HSE engineers accountable for overfill prevention and loss of containment
API 653 holders who need the protection knowledge their inspection intervals depend on
Project and design engineers specifying cathodic protection, linings and overfill systems on new tanks
Cathodic protection technicians and coating inspectors wanting the full engineering context
Compliance, environmental and duty-holder staff responsible for release prevention
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