POR15 or Epoxy Mastic 121?

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jmec
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Post Tue Oct 09, 2012 11:37 am

I've got the rear suspension stripped enough to get the springs and drop links out & want to treat the exposed bits & what chassis I can see. There's no structrial problems just loose scabby rust. So which do you recommend; POR15 or Epoxy Mastic 121? There's conflicting reviews on the web! Cheers J
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greg124
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Post Tue Oct 09, 2012 4:09 pm

I did an Alvis chassis in POR15 about five years ago and it still looks good.
Can't comment on Epoxy Mastic though...
Schadenfreude - the German's haven't got a word for that.
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Kedge
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Post Tue Oct 09, 2012 4:22 pm

Whatever you use you need to at least grind the scabs back to clean metal and then maybe treat with something like Fertan. Painting straight over rust isn't a great idea.
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jmec
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Post Wed Oct 10, 2012 9:15 am

Thanks for the feedback. Reading a bit more on this subject (it's a sad life I lead) I'm going the Mastic 121 route. A lot is written about POR15 not being user friendly when stored for use later & it got a poor score in a Practical Classics test a while back. I'll write up my findings but don't hold your breath it'll be some time before the crap's off the metal. J
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