Good etch primers are hard for an average consumer to get due to the toxicity of the product. Wear a good carbon filter mask when spraying. It can be found in spray cans but is expensive. This can runs about $35 cdn. However a little goes a long way. This is not primer. it is an acid that acts as a bonding agent for primer to adhere to. Spray one light coat on prepped metal, allow to dry and then spray 3 coats of primer over top. Sand and then paint. Your painted chrome will last just as long as other any painted metal on your bike.