I recently had your winshield "renewal". Fortunately it rained. I would suggest at the time of renewal to put in new wipers. The grime from the old wipers immediately messed up the windshield. I can't be sure since I haven't driven at night in the rain,but it seems to me that the windshield was not carefully cleaned before application of the new coating. I hope this may be of help. Daylight driving was greatly enhanced.
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