corrosion – Coatingpedia

Salt Spray & Cyclic Corrosion Testing

Salt spray and cyclic corrosion tests explained: ASTM B117, ISO 9227, ASTM D5894 and ISO 12944-9, how panels are rated, and why hours are not years

5 min read

Science

The Cost of Corrosion

What corrosion costs the global economy, direct and indirect costs, why prevention pays, and how owners can cut corrosion costs…

4 min read

Substrates

Coating Carbon Steel

How to coat carbon steel — corrosion basics, blast cleaning and profile, salt testing, system selection by ISO 12944 category,…

5 min read

Testing

Cathodic Disbondment Testing

Cathodic disbondment testing explained: ASTM G8, G42, G95, ISO 15711 and pipeline standards, test setup, measuring disbonded radius and limits

4 min read

Failures

Undercutting & Rust Creep

Why corrosion creeps under coatings from damage, edges and welds, how to measure undercutting, and how to repair and prevent…

5 min read

Science

Galvanic Corrosion

How dissimilar-metal corrosion works, the galvanic series, why area ratio matters, the right way to coat galvanic couples and practical…

5 min read

Science

Cathodic Protection

How cathodic protection works, galvanic anode vs impressed current systems, protection criteria, coating compatibility and how CP systems are monitored.

4 min read

Applications

Pipeline Coatings

Pipeline coatings explained: FBE, 3LPE/3LPP, field joints, cathodic protection, disbondment, holiday detection and rehabilitation.

6 min read

Science

Corrosion Science Basics

The electrochemistry of corrosion explained: anodes, cathodes and electrolytes, common corrosion forms, and how coatings and cathodic protection stop rust.

6 min read