I meant to add that my main gripe with rattle cans is that ounce per ounce that is the most expensive way to buy paint.
Even when you take into consideration the compressor, drier, lines and sprayer? Maybe if you are painting a whole truck, but not just the interior. When I did mine, I spent no more than $50 for paint and prep supplies. And I spary 5 or 6 thick coats.
