Deck 28: Application of Undercoats

Question 1

Technician A says that adhesion promoters are primers that promote adhesion to plastic body parts. Technician B says a wash primer incorporate an acid that is etches into the metal. Who is correct?

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

Answer 1

C

Question 2

Technician A says that sanded aluminum should be coated within 2 hours after sanding, or the surface will need to be resanded. Technician B says that "wash primers" contain acid that must be neutralized prior to re-coating with a subsequent material coating. Who is correct?

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

Answer 2

D

Question 3

Technician A says that epoxy primers are intended to fill surface irregularities or imperfections. Technician B says that epoxy primers are two-part primers one is a coating and the other a hardener. Who is correct?

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

Answer 3

B

Question 4

Epoxy primers are two-part primers with a coating material and a ____________________.

Question 5

Technician A says that a guide coat is a contrasting color that is applied over a surface that is to be sanded. Technician B says that metal cleaners and conversion coatings do not require an additional undercoating before topcoating. Who is correct?

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

Question 6

In reference to vehicle parts, an "LKQ" used part stands for "like kind and ____________________."

Question 7

Aluminum should never be sanded with grit coarser than P80.

Question 8

Primer surfacer requires sanding before topcoating is applied.

Question 9

Technician A says that when primer filler is applied with a roller, little or no masking is needed. Technician B says that most primer filler is still applied by spray painting. Who is correct?

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

Question 10

Technician A says after washing and dewaxing, the first step in preparing a steel surface for application of undercoats is to sand the surface with a dual action sander (DA). Technician B says that the first step in preparing any surface for application of undercoats is to soap and water wash. Who is correct?

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

Question 11

Technician A says that primer surfacers are undercoats that provide adhesion to the surface. Technician B says that primer surfacers provide light filling qualities to the surface. Who is correct?

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

Question 12

Primer surfacer should be applied to a thickness of no more than 5 mils.

Question 13

Some undercoats are designed to perform more than one function.

Question 14

Technician A says that an acid etch primer can be coated directly with the topcoat Technician B says a .005 paint thickness is the equivalent to 5 mils of material. 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 primer surfacer acts as a barrier coat, stopping the solvents in the topcoat from penetrating its surface. Technician B says that primer sealer provides "hold out", or the ability of the topcoat to shine and maintain its luster. Who is correct?

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

Question 16

The National Regulation of 1998 limits the amounts of ____________________s allowed in each specific type of undercoat applied.

Question 17

____________________ undercoats are designed to perform like a sealer, a primer filler, or a corrosion protector.

Question 18

Technicians should remember and follow the advice of the "six P's of surface prep" slogan: " Proper ____________________ Prevents Poor Paint Performance."

Question 19

Epoxy paint is a primer used to fill minor imperfections .

Question 20

Technician A says that a sealer is commonly used over LKQ parts to provide a uniform or neutral color for the topcoating. Technician B says that sealers cannot prevent coating failure over severely damaged substrate. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A and B

Question 21

Discuss the safety precautions, personal protective equipment, and other materials and equipment needed for correctly working with undercoats.

Question 22

Explain the "Lock Out, Tag Out" procedure and its importance in the refinishing shop.

Question 23

In a paragraph, discuss some of the advantages and disadvantages of rolled priming that a shop should consider.

Question 24

List the advantages of using a multipurpose undercoating in the refinishing shop.

Question 25

Give examples of the importance of controlling film thicknesses when applying various undercoatings.