Deck 27: Solvents for Refinishing

Question 1

The first solvents to evaporate from paint are leveling solvents.

Answer 1

False

Question 2

Technician A says a coating that takes 18 seconds to run out of a viscosity cup is thicker than one that takes 22 seconds to run out. Technician B says that HVLP stands for "high volume, low pressure." Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Answer 2

B

Question 3

The most accurate way to reduce paint is on the paint mixing scale, by weight.

Answer 3

True

Question 4

Technician A says that recycling used solvents by heating can reduce the amount of toxic waste a shop must have removed. Technician B says that spraying on coatings too thickly slows the evaporation of solvents and extends flash times. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 5

A thermoplastic paint will ____________________ when solvents are applied to it.

Question 6

Technician A says that temperature will not affect the way a coating dries and cures. Technician A says that airflow will not affect the way a coating dries and cures. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 7

Once paint and solvents are mixed together, they cannot be separated again.

Question 8

Technician A says that lacquer paint is often used in modern refinishing. Technician B says that thinners are mostly used for the purpose of cleaning equipment. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 9

Technician A says that most coatings that come from the manufacturer must be "thinned" or diluted. Technician B says that when enamel is to be "thinned" or diluted, generally a reducer is used. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 10

Technician A says that a solvent is a general word for many substances that dissolve and carry another chemical. Technician B says that paints coming from the manufacturer do not have solvents in them, so a paint technician must add them so the coating can pass through the spray gun properly. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 11

Different solvents are used when cleaning plastic than when cleaning steel.

Question 12

Technician A says that enamel and urethane paints are reduced by adding thinner. Technician B says that lacquer paints are reduced by adding thinner. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 13

When catalyst is added to a polymer, it causes cross-linking.

Question 14

Technician A says that most reducers, thinners, and other solvents fall into the category of VOC's, and are strictly regulated by state and local governments. Technician B says that stirring paint is an important step that technicians must do very thoroughly. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 15

Technician A says that most of the solvents used in the collision repair industry are both hazardous to the environment and harmful to the technician using them. Technician B says that many solvents can be hazardous to the environment, but none are harmful to humans. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 16

The time that must pass before applying additional coats of a coating is referred to as ____________________ time.

Question 17

Technician A says that when a coating is sprayed on too thickly, solvent popping can occur. Technician B says that according to recent studies, painters seldom exceed film thickness recommendations. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 18

HAP's are Harmful ____________________ Pollutants.

Question 19

Most paint manufacturers suggest the ____________________ reduction method for reducing the product to properly pass through the spray gun.

Question 20

The chemical process by which paints cure is called ____________________-linking.

Question 21

Describe the process of using a sprayout panel to measure film thickness.

Question 22

Explain the different roles of evaporation and cross-linking in the painting process.

Question 23

Discuss the process of solvent recycling and explain its benefit for refinishing shops.

Question 24

Discuss three different solvents and how each is used in vehicle refinishing.

Question 25

Explain why and how air flow can affect paint curing.