Moparmat2000
I'm Awesome
Not sure where to post this. Its painting and detailing , but its also an engine part. Awhile back a buddy of mine was going to order some cast iron gray exhaust manifold paint. I had used this stuff years and years ago on a resto with my dad. When my buddy ordered his I gave him $20 for a small can of it, and I had a pint of my own. They recommend you sandblast the parts and remove any oils or caked up grease which is pretty normal procedure for painting anything. Brushing this on yields ok results. However spraying it on is much better. The best part is you dont need a professional spray rig for this.
The mix ratio is 1-1 with Xylene at your local lowes or home depot paint thinners section. This works good as a paint gun cleaner for epoxy primers, so the gallon you may be forced to buy if theres nothing smaller can work for other stuff. Also pick up a Preval sprayer while there. It's basically a spray bomb of propellant with a nozzle and a straw, along with a little bottle you put your paint in. This thing is horrible for regular paint finishes, but perfect for exhaust manifold paint. If you have a small professional paint touch up gun, that works great too.
Spray in thin light coats allowing it to tack up. It goes on shiny darkish gray and dries a lighter grey. They recommend waiting minimum 24 hours before you get em hot on an engine to bake the coating in. The set I did for my pops lasted 12 years and still looked great when he sold the truck, and we only wire brushed the surface rust off those. Pictured is a set of 1968 vintage 340 Hi Po manifolds. I am sure similar results can be had with steel tube headers. I only used 1/4 of a pint to paint these since it's pretty thick before being thinned to spraying consistency. It goes a long way. I put about 8-9 decent coats on these manifolds. I still have 3/4 of a pint to use on other manifolds and a set of headers.
Hope this helps
Matt
The mix ratio is 1-1 with Xylene at your local lowes or home depot paint thinners section. This works good as a paint gun cleaner for epoxy primers, so the gallon you may be forced to buy if theres nothing smaller can work for other stuff. Also pick up a Preval sprayer while there. It's basically a spray bomb of propellant with a nozzle and a straw, along with a little bottle you put your paint in. This thing is horrible for regular paint finishes, but perfect for exhaust manifold paint. If you have a small professional paint touch up gun, that works great too.
Spray in thin light coats allowing it to tack up. It goes on shiny darkish gray and dries a lighter grey. They recommend waiting minimum 24 hours before you get em hot on an engine to bake the coating in. The set I did for my pops lasted 12 years and still looked great when he sold the truck, and we only wire brushed the surface rust off those. Pictured is a set of 1968 vintage 340 Hi Po manifolds. I am sure similar results can be had with steel tube headers. I only used 1/4 of a pint to paint these since it's pretty thick before being thinned to spraying consistency. It goes a long way. I put about 8-9 decent coats on these manifolds. I still have 3/4 of a pint to use on other manifolds and a set of headers.
Hope this helps
Matt
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