Coating Defects and How to Repair Them

Question 1

Physical separation of bonded coating from the pipe is known as what?

Answer 1

Crack(s)

Question 2

A surface, dome-shaped projection that results from a lifting of the coating film is known as what?

Answer 2

Blister(s)

Question 3

To repair cracks or blisters, remove the defective coating and use _____ tape or ________ tape to repair the damage.

Answer 3

Wax, Cold-applied

Question 4

An undesirable break or discontinuity in the coating that may appear as a pinhole, void, skip, bubble, wrinkle, thin spot, foreign inclusion, or contaminant in the coating is known as what?

Answer 4

Holiday

Question 5

In addition to a visual inspection what other methods can be used to locate holidays?

Answer 5

• Holiday detector
• Jeep

Question 6

To repair holidays remove any disbonded coating and use ____ tape or ______ tape to repair damage.

Answer 6

Wax, Cold-applied