I had smears/streaks issues with CQUK in my first application and upon fixing it with the advices from both Corey and Zach, I learn in and out how to work this CQUK out now. I believe some of you have similar problems so hopefully this will help you out as well.
Smear/streak will look something like this, it can be seen under certain angle and lighting.
This is an example of how perfect application look like. look at that reflection! White mirror vs. real mirror
Prevention:
1. If you are in hot weather together with low humidity (i.e. CA, Florida type of weather), the CQUK will flash/dry very quickly. Mine flash/dry within 10-20 seconds at 80+ F degree and 25-50% humidity. Therefore, you have to wipe on and wipe off almost immediately without any wait time! The higher and lower humidity, the sooner you have to buff it off.
2. Same condition as (1), work in a smaller area at a time such as dividing 2 doors into 3 sections.
3. Use 1 side of the applicator on 1 section only and flip to another side for another section. 1 4x4 suede applicator should only be used on 2 sections.
4. Fold the 16x16 suede towels twice so you will have 8 squares of buffing area with 4 on each side, for 1 section, use 2 squares to do initial buff, and then another 2 squares for 2nd buff. Therefore, 1 16x16 suede towels will be able to handle 2 sections and you will need as many as 10 suede towels per car.
5. Use 16x24 BOA towels to do a final buff.
6. Have good lightning condition and double check to ensure no smear and highspot under various angles.
7. Based on my experience, I disagree with Carpro instruction on applying 2nd coat after 1 hour. Doing this will re-activate the 1st coat and you end up having one very thick coat instead of really having 2 coats. Also, I had smearing problems regardless what technique I use when I put on my 2nd coat in some area after just 1 hour. Therefore, I suggest that you let the 1st coat completely cure which is after 7 days. Wash it, Eraser next, and then apply 2nd coat. I topped 2nd coat like this in some area and it turns out flawless.
8. You should NOT need Reload if you can ensure your car will not be wet within the first 24 hours such as being inside the garage. Reload have streak issue on its own especially in high humidity weather so the less variable you have to deal with, the less headache you will have.
9. If you decide to do 2 coats, do not put Reload in before each coat.
Point 7, 8, and 9 might be controversy but I'm sharing with what actually worked based on my unique situations.
Fix:
Light polish the area that has smear/streak and re-apply CQUK. I used Meguairs M205 with LC Black Pad and it took me 3-4 sections pass to remove it.
Again, I hope Carpro can make a Cquartz for HOT weather such as CQuartz California (CQCA)--something that has LONGER flash/dry time which makes some people life easier lol. CQCA please!
----------------------------------------------------------------------------------------
2 layers of CQUK on my Lexus IS250 2012 here:
Disclaimer: I'm NOT a professional detailer. I share these findings based on my personal experience as a weekend detailer with my own cars.
Reply With Quote
Classic does have a longer work time, although the reformulation requires to wipe off in about 5 minutes (compared to the older version where you could leave it for 45 minutes)
. I bought total of 80 ml of CQUK for coating 3 cars. I finished 2 now and still have about 25 ml left. 
Originally Posted by bigmitch
