Sanding Primer
Discussion
There are literally thousands of videos on YouTube that can teach you exactly what you need to know about car body repairs. Perhaps you, riley26 and tomsim (I'm assuming these are both you as well given all three of you have the same posting style and are all asking about the same rusty Suzuki Swift) can watch some of them...
Get the Technical Data Sheets for the primer & paint you are using from the paint supplier. These will tell you all you need to know about how to apply them, the steps to be taken between materials incl grades of sandpaper, correct air pressure, thinning, flash off time between coats, how quickly the next should be applied etc etc.
Example here: http://www.hex.co.uk/tds/lesonal/Technical%20Data%...
Example here: http://www.hex.co.uk/tds/lesonal/Technical%20Data%...
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