Hi. Can you please spell out the products that you have used. I also have a black 2007 Toyota Avalon. Was not very successful last year so I would appreciate a little help. Thank you very much.
First, Get the car "right":
1. wash: meguire's gold class at any auto parts store
2. meguire's smooth clay and clay lubricant like ONR
3. Wax on/off a coat of Meguire's Ultimate compound
two buckets , wash mitt and some MF towels
From here I would stay inside a product line as they compliment each other:
two examples:
Blackfire Total polish and seal (my fav)
Blackfire Crystal Seal
Blackfire Wet Diamond spray
or
Ultima paint prep
Ultima Paint Guard plus
Ultima Spray
a more conventional approach would be 2 coats of inexpensive Collonite 845 and be done with it - follow with Durgloss aquawax after washes...
all this stuff is great by hand....
with this you'll be more detailed than any car in your neighborhood....
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