I-CAR - Inter-Industry Conference on Auto Collision Repair Certified Refinishing and Color Matching Questions and Answers

Question 1

A technician is preparing to repaint a panel that will be blended into the adjacent original panel. To achieve an invisible repair, what is the primary goal of the blending technique?

Accepted Answer

To gradually transition the new color into the existing color, making the repair undetectable.

Answer

To apply a thicker clear coat over the repaired area for added durability.

Answer

To create a hard tape line between the new and old paint to define the repair area.

Answer

To ensure the new paint is a slightly darker shade to account for future fading.

Question 2

A customer's vehicle is being repaired, and the two-stage paint appears to match perfectly under the shop's fluorescent lights. However, when viewed outside in direct sunlight, a noticeable color difference is visible. This phenomenon is known as:

Accepted Answer

Metamerism

Answer

Chroma shifting

Answer

Flop indexing

Answer

Hue variation

Question 3

When refinishing a vehicle with a tri-coat pearl white, a technician must determine the correct number of mid-coat applications to match the factory finish. Which of the following is the most effective method for achieving this?

Accepted Answer

Creating and using a let-down panel to compare against the vehicle.

Answer

Applying mid-coats until the color visually matches the variant deck chip.

Answer

Using a spectrophotometer to measure the basecoat color only.

Answer

Following the paint manufacturer's recommendation for a standard three coats.

Question 4

Which of the following tools provides the most accurate and objective data for identifying a vehicle's specific color variant by measuring its spectral reflectance?

Accepted Answer

A spectrophotometer

Answer

A high-intensity color-correcting light

Answer

A set of manufacturer's variant color chips

Answer

A digital gloss meter

Question 5

A technician is preparing to blend color onto an adjacent panel. Which of the following surface preparation steps is critical for ensuring proper adhesion and a seamless transition of the new paint?

Accepted Answer

Thoroughly cleaning and then scuffing the blend area with a fine-grit abrasive.

Answer

Waxing the entire blend panel to improve gloss.

Answer

Sanding the blend area with a coarse grit (e.g., 180-grit) sandpaper.

Answer

Applying a thick layer of primer over the entire blend panel.

Question 6

When attempting to color match a vehicle, the technician finds that the OEM paint code has several 'variant' formulas available. All of the following are common reasons for these variations EXCEPT:

Accepted Answer

The use of different spray gun models by the manufacturer.

Answer

Differences in paint batches used at the assembly plant.

Answer

Slight changes in application techniques on different production lines.

Answer

Fading and weathering of the original paint over time.