It will scratch just as easily as any other painted part. If you meant chipping, the best way would be to sand (rough up, sand the chrome till its not shiny any more). Use a quality etch primer, followed by a good build primer then paint. Another option that's more durable would be to have the bumper sandblasted and then get it power coated. When i priced this (locally) i was told appx $50.00 to coat. Having it sandblasted would be up to you though.