Can't remember if I replied to this or not.
I did the same thing John did. Bead blasted and then POR-15 with semi-gloss 
followed by POR-15 
Chassis Coat Black. I don't think the Chassis Coat Black is a rust encapsulator 
in the same way that 
POR-15 is -- at least that's what the POR-15 folks want you to think. Maybe 
they just want to sell 
you both -- not sure.
The Chassis Coat Black is a very full bodied paint and a couple of coats looks 
a lot like powder 
coat in my opinion.
My guess is that powder coat is a more durable finish, but I'm not sure it's a 
rust encapsulator -- 
maybe it is -- I just don't know.
Even with bead blasting on some of the rougher surfaces like cast iron engine 
parts I couldn't get 
all the rust out of the pits, and after a couple of days you could see the rust 
was coming back. So 
in my opinion a rust encapsulator is important. Again, maybe powder coat is a 
rust encapsulator.
In the bushing holes, I used only a thin coat of POR-15 applied with an artist 
brush. I did not use 
the Chassis Coat because it can be too thick and make installing the bushings 
troublesome.
Don Malling
 
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