[MrE]

Simon, I was checking to see if you sprayed POR-15 and didn't find any mention of you using a spray gun to apply it. I checked YouTube and found a video on using an HVLP spray gun. Spraying POR-15 I like that with the disposable cups you can spay with the gun upside down or any other angle. I'll probably sand blast the majority of rust off too.

I found trying to search our forum didn't work with POR-15, but it works just fine using the site qualifier in Google;
por-15 site:newellgurus.com
If I'm looking for just BusNit's posts referencing POR-15, I can add his user ID to the search;
por-15 and busnit site:newellgurus.com