Bone --
No need to "spray" POR-15 -- a good brush will flow out like it was powder coated.... DO NOT USE FOAM BRUSH.... buy a decent enamel brush and throw it away when finished. WEAR Gloves! Don't spill - don't slop! This stuff is impossible to get off once it's dried... a good thing on the part you're coating - not so good on other stuff.
If the part is not "exposed" to UV light (sun) then there's no need to top coat. Read the directions on the can - or on their website...
CLEAN CLEAN CLEAN -- it can't be too grease free! No point in painting over flaky paint either... if it's suspect - get it to bare metal...
The stuff takes awhile to flow out and kick -- so dust can be an issue.... do it in an area that is dust free -
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