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I'm googling right now on this TechLine stuff -- I have an open order from Summit right now that I could toss this in on. Can I douse the exhaust in Acetone or M.E.K. and spray this stuff directly on, or does it REQUIRE sandblasting? Can I chemically etch it with anything? I know I can send my headers away for coating, but IIRC you did yours in your sideyard -- how'd you get the juice INSIDE the headers? And what flavor cookies did you bake simultaneously to camoflage the use of Deb's oven?


The instructions recommend to sand-blast. And to *NOT* bead-blast. Bead blasting closes the surface up.

I think chemical etching will work as well, or even just scrubbing it as best you can with coarse sand paper too.

I wiped it down with laquer thinner, but mineral spirits, MEK, etc should work. I probably wouldn't use acetone as I think it tends to leave a residue.

And, only some of their coatings require an oven cure. Others just cure on the vehicle. You start it and let it idle before you drive it hard and the heat cures it in place.

Getting it inside was a mess. Basically started with welding wire tied around a rag, then sprayed down into all the ends when I sprayed the outside. Soaked the rag and pulled it through several times. Rags don't work all that well though. They soak up too much coating and don't have the "springiness" to keep in contact with the tube surface pulling it through.. Try to find a painting sponge of some sort about the right size and I think that'll work better.

--Dan