you will get nitro mors at your local DIY shop, just get the paint brush they will give you with it n dip it in the nitro mors n paint it on your frame in sections, leave it for about 5 mins, then get a pressure washer or your hosepipe if you havent got a pressure washer n wash off the paint, simple stuff and all good fun
PS don't get nitro mors on your hands, its not very funny