QUOTE(OhNooy @ Dec 15 2013, 08:36 PM)
Currently I'm using Meguiars White Wax (carnauba wax). I just waxed my car last Sunday. 2 days later, on Tuesday, it was a very heavy downpour at the place I park my car when I work. Then when I went to collect my car, I noticed that there are a lot of dark water lines washed down my whole car. It seems the wax is not working well in protection at all. Those looks like the wax melted and mixed with dirt from the rain water.
And today I washed my car. It seems to be those dirt are sticking to my paint. @_@ Washed but cannot help much. After washing, I used Meguiars UQD trying to clean up those stains. Took SO MUCH of effort to clear those dirt marks.
I wonder, is the "carnauba wax" can be melted and become even a dirt magnet? Or it is supposed to be melted and washed away, and those dirt marks are due to no more wax protection on my car?
1. Did you perform a good surface preparation prior to apply wax ?
2. Carnauba wax 'only' look good - product deep gloss by naturally it doesn't last long moreover we are in acid rain climate.
3. Due to Point 2 alot of ppl have choose to use synthetic wax compare to Carnauba as there last much longer and easy (apply) and easy (buff) off
4. For your case, i believe your protection layer has been washed off my the heavy downpour and left with watermark.
5. In order to move water mark, usually you would clay or polish off after a wash, UQD is to mostly use to remove light dust and finger print only.