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I can tell you for a fact that brush on Por-15 in manifold gray is an excellent product.
I would use nothing else on my exhaust manifold. I also use it on my master cylinders. If something happens later, it can very easily be touched up with the brush and not be seen.
That POR-15 Manifold Gray coating worked like a charm for me.
Mike T - Prescott AZ 65 396 Ex Manifold Prior to Coating 65 396 Ex Man After Coating and Oven Curing
I’ve done three sets with the Por-15 and still have half a can left. I didn’t bake anything. I just drove the cars to cure them as the can says.
I only baked them so doing the first start up the smell and what ever else would be one less thing to worry about. if I was doing them on a complete car I would not bake them
That POR-15 Manifold Gray coating worked like a charm for me.
Mike T - Prescott AZ 65 396 Ex Manifold Prior to Coating 65 396 Ex Man After Coating and Oven Curing
My 65 396 exhaust manifolds were not too bad before the coating, they needed a good scrubing and light wire brushing and let them air dry for a few days before coating.
Didn't want the house smelling like 'baked paint' so let them air dry after coating for a day followed by a half hour in the oven at 250 followed by a cool down period.
After initially brushing them, because there are a lot of solids in the paint, there were some brush stroke streaks visible but after the oven curing, they just about all disappeared.
And, as others have already mentioned, the POR-15 paint goes a long way, I doubt I used more than a 1/3 to a 1/2 of the half pint can for the two Bigblock exhaust manifolds.
Mike T - Prescott AZ
Brushed just enough to move any flakes, a few minutes each and then painted with small brush without removing manifolds. The can says it works best over rust. Don't let it dry on your hands and wear some clothes that you think would look good with permanent gray spots. Mine have lasted for years. I dropped an alternator and scraped one and touched it up and cured it and you couldn't see the difference after it cured completely.
04-16-2024, 04:06 PM
