I was at Auto Zone tonight and I saw that they carry Duplicolor primer sealer in quarts and gallons. Has anyone used this stuff? Is it any good? I have been trying to use some high build primer surfacer and it just won't spray for sh*t. I am thinking about picking this up as an alternative.

 

I've used it before (rattle can version) and it worked fine for me on bare metal.

 

do you have to mix any reducer or hardener into the primer cans? or is it just straight up ready to go?

 

I used a rattle can of primer, so I couldn't tell you, sorry.

 

This stuff you would put in a gun. I didn't see if you had to mix it with a catalyst or not. I might end up trying it though. I am just repainting my engine bay not my entire car. I think it would work fine.