Now that you understand the anatomy of your exterior paintwork, you should be able to grasp the difference between a light scratch and a deep one.Ī light scratch is one that’s only made it as deep as the clearcoat without reaching the basecoat. On top of all that is the clearcoat, usually between 1.5 to 2 mils thick, which serves as the first line of defense against the outside world.Ĭlearcoats – are clear (big surprise), containing no resin or pigments. Their purpose is to protect the basecoat from small scratches, scuffs, and UV damage caused by the sun. This helps keep the base layer free from damage due to moisture. Many basecoats also have anti-oxidant properties (in addition to what’s in the sealer). Here’s what gives your car its unique color, the basecoat, which is typically about 4 to 6 mils thick (1/1000 of an inch). Sealers also help the paint adhere to the body, creating a strong bond that ensures the finish looks great for as long as possible. Next comes a sealer, which results in a superior glossy finish and helps protect the metal from oxidation and rust. Primer/Sealerīefore applying a layer of paint, a primer is used to fill in any surface imperfections. Which usually consists of some form of steel or aluminum combination (as well as other alloys).įor the front and rear bumpers, most are made of fiberglass or a mix of different plastics. Underneath all the glitter and gloss is your car’s body. Scratches 101: A Closer Look Base Layer (Metal/Fiberglass/Plastic) 1x Bottle/tub of automotive specialty waxīefore we dive into the process of removing a deep scratch, let us first take a closer look at the surface of your car to help you determine whether the damage is light or deep.
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