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Originally Posted by caswell
The biggest problem using something like JB Weld or any epoxy, is that they are not designed to be baked at 400 deg f.
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Since I am Doing Magnesium parts I out gassed them at 500 for an hour and the stuff still held and did not change or even discolor. I even pre baked them twice, discovering that with Valve covers, you need to really clean them inside really really good.
Did I mention that you need to clean Valve covers real well as the Oil makes a terrible bit of smoke and smells bad too!
I will be coating them this week so I will post pic's of the results for all to see.