AMPP CAS-2 case studies
AMPP CAS-2 · Put your knowledge to work in context.
The AMPP Coating Application Specialist (CAS) credential is issued by AMPP, The Association for Materials Protection and Performance, which describes itself as the largest global community for corrosion and coatings expertise and lists coating inspection and protective coatings among the areas its courses and certifications cover. CAS is aimed at the craft-level workforce that actually applies protective coatings in the field and shop - applicators and crews working on steel structures, tanks, pipelines, marine assets, and industrial facilities - and at the supervisors who direct them. The AMPP CAS-2 case studies are 5 cases and about 2,088 words.
1Condensation on a Cold Steel Tank Between Blast and Prime
A crew is abrasive-blasting the interior of a carbon steel tank in an open shop in late autumn. Ambient temperature is 12 °C and the steel surface reads 11 °C on a contact thermometer; relative humidity is 68%.
511 words, about 3 min2Low Film Build on Structural Steel Angles After a Wet Spray
A shop applies a two-coat epoxy system to fabricated structural angles. The specified dry film thickness is 150–200 µm per coat.
417 words, about 2 min3Solvent Odor and Ventilation in a Confined Space Coating Job
A crew is applying a solvent-borne epoxy inside a 3 m diameter steel vessel through a single 500 mm manway. A blower is running, but the flexible duct discharges near the manway rather than at the bottom of the vessel, and the vessel is only partially purged.
419 words, about 2 min4Recoating Window Missed on a Zinc-Rich Primer
A bridge girder is primed with an inorganic zinc-rich primer at 75 µm. The topcoat is a high-build epoxy specified at 100–150 µm.
372 words, about 2 min5Holiday Detection Dispute on a Buried Pipeline Coating
A buried steel pipeline is coated with a fusion-bonded epoxy at 400 µm. The inspector runs a high-voltage holiday detector at a test voltage the contractor set 'by feel.' Several holidays are found near field joints where the coating was patched.
369 words, about 2 min