What is the cause of chalking in epoxy coating - ANSWER UV or radiation exposure
What is polymerization cured coating? - ANSWER Two parts mixed together just prior to
use
Examples of non-convertible coatings - ANSWER 1. Chlorinated rubber 2. Vinyl 3. Acrylic
4. Bituminous
Non-convertible curing def. - ANSWER No chemical change during cure cycle
Convertible curing def. - ANSWER Some chemical change during cure cycle
What info should be included when sending samples to a lab? - ANSWER 1. Identity of
materials 2. Properly packed/labeled samples 3. Chain of custody form 4. Type of analysis
that is expected and the concentrations of interest
Specialized tests or equipment coating inspectors may encounter - ANSWER 1. AA/AE
Atomic Absorption/Emission 2. ISP Induction coupled plasma Spectrometer 3. GLC Gas liquid
chromatographs 4. IR, FTIR, FTIR-ATR INfrared spectrophotometers 5. DSC Differential scan-
ning calorimeters
What is a cathodic dis-bondment test? - ANSWER Procedure to determine how easily a
coating loosens from a substrate or develops holidays as a result of normal soil potentials
1
, Individuals who perform surveys - ANSWER 1. O-Cat or S-cat tech 2. NACE coating spe-
cialist 3. NACE Level III 4. Coating Inspector w/field experience 5. Coating manufacturer rep-
resentative 6. Maintenence engineer with specific plant knowledge.
Coating survey steps - ANSWER 1. Understand scope 2. Gather team 3. Develop survey
plan 4. Review standards 5. Agree on format 6. Delegate various tasks 7. Eveluate existing
coating 8. Delegate various tasks 9. Evaluate existing coating 10. Gather additional info 11.
Summarize data 12. Prepare maintenance plans 13. Prepare reports/input data 14. Submit
final survey reports.
List some of the primary reasons surveys are performed - ANSWER 1. Plan maintenance.
2. Prioritize work 3. Budgetary concerns 4. Determine value of assets 5. Legal compliance
Definition of a coating survey - ANSWER Gather baseline info needed to plan mainte-
nance coating procedures
What are faying surfaces and why not galvanize them? - ANSWER Surfaces that depend
on friction to hold galvanizing it may/will reduce friction if they are galvanized
Common problems seen during the usual inspections of HD galvanized items - ANSWER
1. Cracking 2. Peeling 3. Bare spots 4. Lumps 5. Blisters 6. Flux inclusions 7. Ash inclusions 8.
Dross inclusions
Post galvanizing treatments and why - ANSWER To Remove Thickness: Roll, Wipe, Centri-
fuge/Air Blast
To change properties/To alloy: Annealing
Temperature range for galvanizing kettle - ANSWER 820-850 F
Purpose of pickling - ANSWER Hydrochloric or sulfuric acid bath to remove oxides and
mill scale
2
What is polymerization cured coating? - ANSWER Two parts mixed together just prior to
use
Examples of non-convertible coatings - ANSWER 1. Chlorinated rubber 2. Vinyl 3. Acrylic
4. Bituminous
Non-convertible curing def. - ANSWER No chemical change during cure cycle
Convertible curing def. - ANSWER Some chemical change during cure cycle
What info should be included when sending samples to a lab? - ANSWER 1. Identity of
materials 2. Properly packed/labeled samples 3. Chain of custody form 4. Type of analysis
that is expected and the concentrations of interest
Specialized tests or equipment coating inspectors may encounter - ANSWER 1. AA/AE
Atomic Absorption/Emission 2. ISP Induction coupled plasma Spectrometer 3. GLC Gas liquid
chromatographs 4. IR, FTIR, FTIR-ATR INfrared spectrophotometers 5. DSC Differential scan-
ning calorimeters
What is a cathodic dis-bondment test? - ANSWER Procedure to determine how easily a
coating loosens from a substrate or develops holidays as a result of normal soil potentials
1
, Individuals who perform surveys - ANSWER 1. O-Cat or S-cat tech 2. NACE coating spe-
cialist 3. NACE Level III 4. Coating Inspector w/field experience 5. Coating manufacturer rep-
resentative 6. Maintenence engineer with specific plant knowledge.
Coating survey steps - ANSWER 1. Understand scope 2. Gather team 3. Develop survey
plan 4. Review standards 5. Agree on format 6. Delegate various tasks 7. Eveluate existing
coating 8. Delegate various tasks 9. Evaluate existing coating 10. Gather additional info 11.
Summarize data 12. Prepare maintenance plans 13. Prepare reports/input data 14. Submit
final survey reports.
List some of the primary reasons surveys are performed - ANSWER 1. Plan maintenance.
2. Prioritize work 3. Budgetary concerns 4. Determine value of assets 5. Legal compliance
Definition of a coating survey - ANSWER Gather baseline info needed to plan mainte-
nance coating procedures
What are faying surfaces and why not galvanize them? - ANSWER Surfaces that depend
on friction to hold galvanizing it may/will reduce friction if they are galvanized
Common problems seen during the usual inspections of HD galvanized items - ANSWER
1. Cracking 2. Peeling 3. Bare spots 4. Lumps 5. Blisters 6. Flux inclusions 7. Ash inclusions 8.
Dross inclusions
Post galvanizing treatments and why - ANSWER To Remove Thickness: Roll, Wipe, Centri-
fuge/Air Blast
To change properties/To alloy: Annealing
Temperature range for galvanizing kettle - ANSWER 820-850 F
Purpose of pickling - ANSWER Hydrochloric or sulfuric acid bath to remove oxides and
mill scale
2
