Just painted(4) wheels on a Toyota Highlander for a customer. Sorry not Buick related but... this product could be used on Buicks that guys want Black hoods or stripes down the sides. Very user friendly. I was surprized at how nice this product performed. They give you base (clear) it's like a primer. Then they give you the color. Both are ready to spray. Then the top coat is clear. That is activated by hardener and reducer they give you in separate containers. Takes 12-18 hours to fully cure. Seems to be very durable. Color covers in one coat. But need 3-4 or more . So it peels easy in the future.