This updated NACE International standard test method specifies test methods to evaluate the performance of liquid coating systems for seawater immersion services. This test method is intended for use by facility owners and coating manufacturers.The test method covers liquid exterior protective coating systems for offshore platform steel structures, piers, docks, pilings, subsea valves, and wellheads at normal seawater temperature.
Included are four test methods—including cathodic disbondment, seawater immersion resistance, aging stability, and edge coverage—used to evaluate coating systems. The test method also includes two tables; Table 1 details fingerprinting of coating materials, and Table 2 details the test panel geometry, size, substrate material, and minimum quantity.
Key words: aging stability test, anode, anode isolation, cathodic disbondment test, coating system, DFT, dry film thickness, edge coverage test, fingerprinting test, flexure strain, high-impedance multimeter, holiday, induction time, liquid exterior protective coating systems, NACE No. 2, near-white metal, reference electrode, seawater immersion resistance test, developed by STG 03, surface profile, synthetic seawater, test panels, developed by TG 264, wet film thickness, WFT. nace standards credit redeemable
| NACE International | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | 21244-2019 |
| Product Name | TM0204-2019 “Exterior Protective Coatings for Seawater Immersion Service” |
