Hi Pichel – You can use any metal primer and any sealer.Rustoleum is an efficient one. Stick to Instructions about the primer can for time to wait to paint. I like Minwax Polycrylic inside of a spray can with the sealer. You might have to buy it online as it http://johnathanhgday.digiblogbox.com/23046673/painted-gray-kitchen-cabinets-options