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      03-18-2013, 04:26 PM   #2
rogers08m3
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Drives: 2008 BMW M3
Join Date: Mar 2013
Location: Caledon, ON

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Neither Sonax nor IronX are abrasive (I think you mean acidic or caustic); they aren't those, either. Sonax should cause no issues with any finish of wheel as long as the wheel is nice and cool. Apply liberally, and either pressure wash off or agitate then pressure wash. It's safe enough people let it dry on wheels all the time (not on purpose) and it just rinses off. IronX is basically the same thing, just a stronger formulation.
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