I used to be big on the epoxy primers, but have now migrated over to the POR 15. I have sandblast capabilities ( I live in Shilo, so the sand is free), so the metal preparation is not a big deal. I find that if I paint my topcoat onto the POR-15 while it is still tacky, the adhesion is good. It does however make my flat military gillespie paint almost into a semi gloss, but also seems to harden the gillespie paint as well.
I did apply the POR15 onto a M152 fame by a spray gun once, but think I will live with the brush from now on. The final finish by the brush is every bit as nice.
If only they would make POR-15 in military colours.
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