With the Ozpig sanded back, all rust removed, clean and dry it is ready to put the paint on.
First up it is important to choose the correct paint. You will need heatproof spray paint, there are a number of different brands on the market. The best we have found is paint made specifically for car engines/exhausts/brake calipers etc. Some of these paints are rated to temperatures of over 1000c which is perfect. Some people swear by pot belly black but personally we have never had much success with it and the instructions rate it to only 300c and i think it is better suited to cast iron pot bellies where the surface is rougher giving a better bond.
Spray painting is quite easy but there are a few simple principles to stick to, to give the best results. Firstly shake the can well for a minute or 2 to ensure the paint colour is properly and evenly mixed. Paint in a well ventilated area away from objects that could be damaged by paint overspray eg: cars. Also it's best to not paint in an area that is too windy as it blows a lot of paint away and wastes more than necessary. The main thing is to hold the can the correct distance away from the surface you are spraying, about 30cm is perfect. Too close and you will spray too much at once causing the paint to run. Too far away and your coat will be too thin and not cover the surface properly. Start off the side of the surface you are painting then as you spray, move across the surface in a sweeping motion at a steady even rate and hold the nozzle down until you get off the other end. Move from top to bottom until the area is coated evenly. Remember 3 or 4 or more thin coats are better than 1 or 2 thick coats. Allow some time to dry between coats as directed by the paint can instructions. Once applied follow paint can instructions for drying times. If you have paint left in your can when finished painting it is important to run your can upside down and spray for a few seconds until no paint comes out. This clears the nozzles so it doesn't block up with dried paint.
Start by turning the ozpig upside down on an old tarp or newspaper underneath with 1 coat and allow to dry, then flip it over then do sides and top. Then repeat process until all is done. Paint the chimney sections and door pieces individually also.
Allow to dry for a few days or follow the instructions on your paint can. It's important to note that most high heat paints require baking to reach full hardness and to be totally cured otherwise you will find lifespan of the paint is drastically reduced.