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Xtream Temperture Coating on Cast Iron Heads

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I have a set of Heads on a Pontiac 400 motor that engine paint does not stay on the exhaust ports. I purchased some of your Pontiac Metallic Blue to try on them. I plan to Wire brush the exhaust pots well and clean with your KBS klean. Then foam brush a couple light coats of the Extream temp coating. 

Is there any thing else I should do. If this works and looks good, I will spread the news to the Pontiac community. 

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We developed the XTC in Pontiac Metallic Blue for people just like you.

Yes, wire wheel and then sand with abrasive pad or paper (60-80 grit). Wash surface well with KBS Klean at a 10:1 (10 Parts Hot Water and 1 Part KBS Klean) ratio, rinse and let dry thoroughly. Apply the XTC in thin coats and at least 2 coats. If you are concerned about rust protection, apply 2 thin coats of XTC Primer before the XTC.

Please be sure to read carefully the XTC Directions and let us know if you have any additional questions.

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Yes, you can wait 24 hours between coats. As a general rule, we always suggest within 7 days.

For XTC aerosol, at least 30 minutes between coats and before temperature cure.
For XTC non-aerosol, at least 8 hours between coats and before temperature cure.

Please let us know if you have any additional questions.

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Thought I would update and let you know I got the exhaust ports painted. The paint shade is a little different from my other Pontiac Blue Metalic however I think  the color will work with it. I have gone through the curing process. I let it idle for about 40 min. The center port got up to 450 +-  the other ports get about 350 +- at idle. 

It want been driven for another week to see the full potential of your paint generally the paint cooks of after the first ride so I'll update again. 

That i I would add a before after photo. 


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  • 3 months later...

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