Definitions

Question 1

The coating must resist breakdown from the chemicals to which it is exposed. This is a primary function of the resin used.

Answer 1

Chemical Resistance

Question 2

Water affects virtually all coatings. Greater resistance equates to more effective corrosion control.

Answer 2

Water Resistance

Question 3

A vital characteristic, especially to intricate structural details. The more difficult the application, the more opportunity for defects to be created, leading to coating failure.

Answer 3

Ease of Application.

Question 4

Based on physical and chemical interactions between the coating and the substrate. Poor performance equates to?

Answer 4

Adhesion to substrate

Question 5

Coatings but be able to withstand the stresses of the curing process and changes in temperature and moisture content.

Answer 5

Cohesive Strength

Question 6

The ability to expand and contract with the substrate is critical in some coating applications.

Answer 6

Flexibility and Elongation.

Question 7

The coating may have to resist impact loads.

Answer 7

Impact Resistance

Question 8

Coating in some areas may have to be abrasion?

Answer 8

Abrasion resistant.

Question 9

The environment may expose the coating to extremes of temperature, usually elevated.

Answer 9

Temperature resistance.

Question 10

A key variable in barrier coatings and when using coatings in conjunction with cathodic protection.

Answer 10

Dielectric Strength.

Question 11

Components of a coating, typically added in small amounts to perform a specific function.

Answer 11

Additives

Question 12

The process by which dissimilar molecules cling together due to attractive forces.

Answer 12

Adhesion

Question 13

Adhesion can be?

Answer 13

Chemical, mechanical, polar or a combination of all three.

Question 14

A coating that (1) has a high resistance to permeation of liquids and/or gases or (2) is applied over a previously coated surface to prevent damage to the underlying coating.

Answer 14

Barrier Coatings

Question 15

The nonvolatile portion of the vehicle of a formulated coating material.

Answer 15

Binder

Question 16

Coatings whos binders are made from non-living things. Most commonly based on Zinc or Silicone.

Answer 16

Inorganic Coatings

Question 17

A pigment that passivates the metal surface by forming a thin, tightly adherent film or by reinforcing and plugging defects in the natural air formed film?

Answer 17

Inhibitive Pigment

Question 18

Coatings whos binders are made from living, or once living, things.

Answer 18

Organic coatings

Question 19

The file, solid particles added during manufacture of a coating which are substantially insoluble in the vehicle. Used to Impart color, corrosion control, or decorative properties?

Answer 19

Pigments

Question 20

Used to Impart color, corrosion control, or decorative properties?

Answer 20

Pigments

Question 21

Coatings that use a metal that is anodic to steel and corrodes preferentially.

Answer 21

Sacrificial coatings.

Question 22

Essentially, sacrificial coatings are a form of ___ ___, especially in the vicinity of film defects.

Answer 22

Cathodic Protection.

Question 23

Added to coatings to liquefy the binder and allow for application in a productive manner.

Answer 23

Solvents.