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AMPP CIP Level 2 > Coating Types, Failure Modes, & Inspection Criteria > Flashcards

Coating Types, Failure Modes, & Inspection Criteria Flashcards

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1
Q

What are the types of curing mechanisms?

A
  • Convertible (chemical change during cure cycle)
  • Non-Convertible (no chemical change during cure cycle)
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2
Q

What is a convertible curing mechanism?

A

Chemical change during cure cycle

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3
Q

What is a non-convertible curing mechanism?

A

No chemical change during cure cycle

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4
Q

What are some examples of non-convertible coatings

A
  • Chlorinated rubber
  • Vinyl coatings
  • Acrylic coatings
  • Bituminous coatings
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5
Q

What are common failure modes for chlorinated rubber?

A
  • Blistering
  • Pinholes
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6
Q

Name critical inspection criteria for chlorinated rubber.

A
  • Thickness tolerance
  • Substrate temperature
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7
Q

What are common failure mode(s) for vinyl coatings (non-convertible)?

A
  • Blistering
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8
Q

Name critical inspection criteria for vinyl coatings (non-convertible).

A
  • Thickness tolerance: minimal
  • Substrate temperature
  • Ventilation: adequate
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9
Q

What are common failure mode(s) for bituminous coatings?

A
  • Cracking
  • Delamination
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10
Q

Name critical inspection criteria for bituminous coatings.

A
  • Thickness tolerance
  • Application technique
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11
Q

What are common failure mode(s) for epoxy coatings (two component)?

A
  • Failure to cure
  • Pinholes
  • Sagging
  • Delamination
  • Chalking
  • Blushing
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12
Q

What are common failure mode(s) for zinc rich epoxy?

A
  • Failure to cure
  • Pinholes
  • Sagging
  • Delamination
  • Chalking
  • Blushing

same as regular epoxy coatings

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13
Q

Name critical inspection criteria for epoxy coatings (two component)

A
  • Mixing
  • Thinning
  • Thickness tolerance
  • Enivronmental conditions
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14
Q

Name critical inspection criteria for zinc rich epoxy

A
  • Mixing
  • Thinning
  • Enivronmental conditions
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15
Q

What are common failure mode(s) for polyester and vinyl ester coatings?

A
  • Failure to cure
  • Blistering
  • Delamination
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16
Q

Name critical inspection criteria for polyester and vinyl ester coatings

A
  • Environmental conditions
  • Application equipment and process
17
Q

What are common failure mode(s) for polyurethanes (thin film)?

A
  • Cracking
  • Loss of gloss
  • Uneven color appearance
18
Q

Name critical inspection criteria for polyurethanes (thin film)

A
  • Mixing
  • Environmental conditions
  • Thickness tolerance
19
Q

What are common failure mode(s) for polyurethanes (thick film & hybrids)?

A
  • Failure to cure
  • Delamination (won’t coat itself)
20
Q

Name critical inspection criteria for polyurethanes (thick film & hybrids)

A
  • Mixing
  • Environmental conditions
  • Thickness tolerance
21
Q

What are common failure mode(s) for siloxanes?

A
  • Cracking
  • Delamination
  • Improper curing
22
Q

Name critical inspection criteria for siloxanes

A
  • Mixing
  • Environmental conditions
  • Thickness tolerances
23
Q

What are common failure mode(s) for silicones?

A
  • Peeling
  • Flaking
  • Delamination
24
Q

Name critical inspection criteria for silicones

A
  • Heating schedule
  • Thickness tolerance
25
Q

What are common failure mode(s) for inorganic zincs?

A
  • Mud cracking
  • Failure to cure
26
Q

Name critical inspection criteria for inorganic zincs

A
  • Environmental conditions
  • Thickness tolerance
  • Mixing
  • Application process
27
Q

A coating film that involves a chemical change within the resin/binder during curing is called a _______.
A. Non-convertible coating
B. Vinyl
C. Chlorinated rubber
D. Convertible coating

A

D. Convertible coating

28
Q

Which resin type is commonly blended with other resin types because of its excellent resistance to UV degradation?
A. Epoxy
B. Aromatic polyurethane
C. Alkyd
D. Acrylic

A

D. Acrylic

29
Q

Coatings that cure by a chemical reaction yet are packaged in a single container are?
A. Alkyds/oil enamels
B. Amine epoxy
C. Moisture cured urethane
D. Polyurea

A

A. Alkyds/oil enamels

C. Moisture cured urethane

30
Q

Which of the listed coatings failures is common to both convertible and nonconvertible coatings?
A. Incorrect film thickness
B. Failure to add the ‘B’ component
C. Improper formulation
D. Wicking due to glass fiber in film

A

A. Incorrect film thickness

31
Q

Pure silicone coatings typically require a two-step cure process where the first step is solvent evaporation. What is the second step?
A. Oxidation curing
B. Heat (fusion) curing
C. Hydrolysis
D. Co-reaction curing

A

B. Heat (fusion) curing

heat cycle

AMPP CIP Level 2 (18 decks)

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