What is the difference between primer and sealer on a car?
What is the difference between primer and sealer in the automotive paint industry? This is a great question and could lead into a forever explanation. However, I will make it as short as I can. Primer is basically a material to make something ready for the next stage. Sealer is pretty much self-explanatory. An automotive paint sealer, is a barrier that seals in everything under it and all above it.