QUOTE(david_ngcw @ Jan 5 2012, 10:59 AM)
yeah... but must be veli hard working loh...hohoho

Here is the misconception....
You must clean and wash the car regularly IRREGARDLESS what protection you apply to you car (normal polish and wax, or SG/PPS/nano coating)....
Dont mean that after spending money on the above, you dont need to wash car regularly to maintain the shine.... washing is to remove the dirt, dust and grime from the topmost layer, so that the shine can... errr... shine through (pun intended)....
Why cars lose their luster after months and years of neglect...?? This is coz the top coat layer have been so dirtified (not a real word) that the paint looks dull... or worse, the car no longer have top clear coat layer and dirt and grime have "eaten" into the paint coat or even the metal itself....
So, the above is done to preserve the top coat, just that SG/PPS/Nano coating ADDS one layer on top of the clear coat, while polish actually cuts off that clear coat and covers it back with wax as the next step...
Phew.....