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i can not make any comment about lesonal as i don't use it in my shop nor ever will .
could that be the trouble ?? maybe but i don't think so ??
in no way do you want to use epoxy over a etch primer . their should be no question about that !
i did look at the G2 tds and it does state the same as you stated unlike the old TDS for feather fill .
as for a single component lacquer base product ever ok to use under a 2 part product .
i do not agree with that at all in any way shape or form .
we do not have any problems with a catalyzed epoxy (2 part) primer under the feather fill . but again we always wait a long time before we go over it with the feather fill .
my big concern is the lacquer based product you used on the bare metal .
if evercoat is telling you to use their urofill over the feather fill and lacquer based self etch then you should do so .
at least by doing so your staying with in one product line .
i would be very concerned about it still being solvent sensitive (looking like you put paint stripper on it ) when you spray the uro-fill .
or worse in a year or two from now ending up with your finish shrinking in and having rings where your having troubles now with lifting .
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