You NEED to use the buff primer that is made JUST FOR the BB John Deere paint. Don't use nothing else. This primer is good anyways. Mixing ratio with hardeners, etc for the paint 8-1-1 just to let you know. Make sure you follow instructions exactly and dont let it sit too long or too short between drying periods. www.hotrodders.com Go there and you will see a thread all about this paint in the painting section. It will help you a ton.