Posts by DCInc

LOL - It is below $60 a barrel today.

 Not sure if this will help but I have seen similar defects in my shop. Some of my fabricators use anti-splatter oil when welding and any of this redisue left over causes wrinkle type defects.

There is one more things that caused/causes these type of imperfections but it is mostly during the hot months. I have seen sweat from employees drop onto parts before spraying and it creates the same pattern when the coating is cured. I did not see wether you are pre-heating the part before spraying after it is hung on the rack. Maybe the larger panels cause the employees to come into closer contact with them when they are hanging ....just a thought but it does look exactly like your picture when it happens here.

OK now I see the problem. The Heliocoat product is only good to 900 degrees. While this will work for mufflers and the pipes a good distance away from the head it will not work for the headers themselves. I have measured the external temp on my headers at 500 degrees at idle! That means at WOT the temps reach the neighborhood of 1200-1500 degrees and in some turbos 1800+ under boost. The pipes will actually glow red hot in some applications.

Thanks for all the help guys it really cleared up what they were talking about.

I am pretty sure I know the answer to this question but I have had two customers lately swear it is out there.

Does anyone know of a powder coating design for exhaust pipes/headers that will withstand the temps? I currently spray liquid ceramics but these guys want a powder version!? I had done searches but come up empty....maybe I am missing something??

What is everyones recommendation on a new batch oven. I am looking at a 24'X10'X10' ID probably with doors on both ends.

Tom

The current booth I have I had to put one on because at the time it was easier to install rather than argue with them. That was 6yrs ago. Since then I have talked with other coaters in the area and the fire marshall did not require them to install one since it was powder only. I was curious where you would find the regulations written down so maybe when I install the second booth I do not have to go through the expense again.