Chapter 8 Coating Types and Curing Mechanisms

Question 1

The two broad classifications for curing mehanisms are:

Answer 1

Convertible and Nonconvertible

Question 2

List two non-convertible coating types

Answer 2

Chlorinated rubber

Vinyl

Question 3

List three convertible coating curing mechanisms

Answer 3

Oxidation, Co-reation (polymerization), Hydrolysis, Fusion)

Question 4

List two characteristics of oxidation cure coatings

Answer 4

1) Not suitable for immersion service
2) Not suitable for use over alkaline substrates
3) Limited dry film thickness per coat

Question 5

List three coating types that cure by polymerization

Answer 5

Epoxies
Urethanes
Polyureas
Polyaspartics
Polysiloxanes
Others

Question 6

Induction time is:

Answer 6

The time required by the product data sheet (coating manufacture) between mixing the coating and the start of application

Question 7

What is the main requirement for a hydrolysis coating to cure?

Answer 7

Moisture

Question 8

Industrial and marine coatings are commonly referred to by:

Answer 8

by their generic resin type (allkyd, epoxy, polyurethane)