SEM comes in an aerosol and the results are an 8 on a scale of 1-10. You can eliminate one of your steps, no need to polish just resurface and spray. You will need a UV curing lamp to dry them, this is also a SEM item. Barry of Presidential will also agree that for a rattle can this product works well, but for the best results using a HPLV spray gun is preferred. With a spray gun you can lay the product down flat, exactly like OEM where an aerosol leaves a slight orange peel.