hey guys,
a while back I fixed some rust on my car with bondo, then primed and spray painted it for now. but now the holes are showing again, not rusting they look like they sunk in just enough to show the outline, what did I do wrong. and I did go down to bare metal so did I need to seal it. what is sealer, I thought thats what primer was for, where can I get it. thanks

 

anyone?

 

You can buy sealer primer by the quart or larger at an automotive paint store. You should match the brand and line you buy to the paint you are going to spray if possible (especially if you are doing them close in time to each other).