Car Wraps Ultimate 3

Question 1

What distinguishes cast vinyl from calendered vinyl in manufacturing?

Accepted Answer

Cast vinyl is poured as liquid onto a casting sheet, while calendered vinyl is rolled and stretched through heated rollers

Answer

Cast film is poured in liquid form so it has no built-in tension, while calendered film is mechanically rolled, giving it shrink memory.

Question 2

An installer notices fingers forming at the edge of a curved bumper section. What does this indicate?

Accepted Answer

The vinyl was overstretched and tension is causing lift-back

Answer

Fingering at edges signals overstretched film whose tension is pulling it away from the surface.

Question 3

Which alcohol-to-water ratio is commonly recommended for the final surface prep wipe before wrap installation?

Accepted Answer

Roughly 70% isopropyl alcohol to 30% water

Answer

A roughly 70/30 IPA-to-water mix removes residues and flashes off cleanly without harming paint.

Question 4

In the US, what must a shop verify before wrapping a leased vehicle in a color-change film?

Accepted Answer

That the leasing company permits modifications and the wrap is removable without damage

Answer

Lease agreements often restrict modifications, so shops should confirm the lessor allows removable wraps.

Question 5

What is the main risk of installing vinyl in a workspace below about 60°F (16°C)?

Accepted Answer

The adhesive will not flow and bond properly, and the film becomes brittle

Answer

Cold temperatures make vinyl brittle and prevent the pressure-sensitive adhesive from wetting out properly.

Car Wraps Practice Test