You can also use cans of spray paint (“rattle canning” the car), but the best results will come from an air-powered sprayer — but also at the highest cost. You’ll have to roll on several thin coats of paint, but it will still technically be a “single coat” paint job.Click to see full answer. Likewise, people ask, can you use a roller to paint a car?Apply paint to the car using the 4-inch roller. Soak up just a small amount of paint and then force the paint out of the roller. This should produce a thin coat of paint. Use the foam wedge brushes for hard to reach spots.Subsequently, question is, can you roll on automotive clear coat? Generally speaking, a car’s paint job consists of a base layer (the colorful part), and a clear coat layer on top of the base. You’ll have to roll on several thin coats of paint, but it will still technically be a “single coat” paint job. Likewise, people ask, what kind of paint do you use on cars? enamel paint Can you brush on automotive clear coat?ALWAYS WORK IN A WELL VENTILATED AREA. Apply DiamondFinish Clear to clean and dry prepared surfaces using a bristle brush, foam brush, roller, or spray equipment. Brush marks will flow out nicely. When brushing, apply covering coats, AVOID PUDDLING OR POOLING.