Chapter 7 - Coating Fundamentals

Question 1

Two broad classifications of a coating are?i

Answer 1

Organic or inorganic.

Organic made of materials that were alive at one time.
Inorganic never living.

Convertible and non-convertible

Thermosetting and thermoplastic

Question 2

Describe the three methods by which a coating provides corrosion control

Answer 2

Barrier coatings, inhibitive coatings and sacrificial cathodic protection.

Question 3

What are the three different ways a coating can adhere to the surface?

Answer 3

Chemical bond, polar adhesion and mechanical adhesion. A combination of all three

Question 4

List three desirable properties of a coating.

Answer 4

Chemical resistance, water resistance, ease of application, adhesion to substrate, cohesive strength, flexibility and elongation, impact resistance, abrasion resistant, temperature resistant and dielectric strength.

Question 5

What are The two primary components of a liquid applied coating?

Answer 5

Pigment and vehicle (resin or binder and solvent)

Question 6

What does the vehicle consist of?

Answer 6

Resin/binder, solvent and liquid additives