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      08-06-2013, 02:11 PM   #6
PTek Will
Second Lieutenant
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Drives: 335i coupe
Join Date: Jun 2012
Location: san jose

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Amonia free or not is ok, as long as it is acid free (PH balanced - 7). The amonia does remove wax so if you put any sort of wax or sealant on your screen (probably not and probably don't want to) then it will remove it.