Should a spray detailer work streak free on glass?

rotts4u

rotts4u

Member
I have noticed that on some spray detailers or rinse less wash products that if I use them on glass I get streaks.
if it streaks on glass which I can see by looking through the windows, doesn't that mean that it likely does the same thing on paint? Meaning the paint is not as clean and shiny as it should be?

I have just started noticing this and it doesn't do it on every product so there may be a missing technique that is causing me to see this on glass. Of course I know that glass cleaners are better on glass than detailers but when I saw this it got me thinking about this and I wanted to see if others more skilled than I have thoughts or input on this?
 
I've noticed this too. Lots of detailers leave something behind for protection, in the form of polymers or wax, and many have wetting agents and lubrication. These products may smear on glass because the lack of surface tension causes the chemicals to get left behind rather than absorbed into the towel while buffing. It simply takes more buffing or a different towel on glass to flash off the chemicals or wax.
 
I have tried PB's Glass Cleaner and it seems to behave more like a detailer. It leaves glass glossy and slicker to me.
 
Pats300zx said:
FK425 is fantastic on glass.
Click to expand...

Not for me. It isn't *bad* but my experiences with it have been far from "fantastic" . Just one of those YMMV things..I never use QDs on glass, but then I don't even use my rinseless washes on it because they just don't leave it as nice as my Glass Cleaners. Again, it's YMMV since plenty of people swear by their rinseless products for cleaning glass.
 
I use ONR at QD dilution on glass with no problems. Just have to make sure you "buff" it plenty with a dry towel at the end. I have the best luck with the blue shop towels, the paper towel type, or a "fluffier" MF. Never had a problem with the blue towels linting or anything.

I've even had success with that technique on extremely hazy interior windshields.
 
I always use QD and / or UWW+ on my windows. But, I always give the glass an extra buff with a fresh MF towel as a last step and it seems to resolve the streak issue.
 
There was another discussion where a few pros mention baby shampoo as a glass cleaner.

I use ONR at 1:2543563546758689 lol whatever the wash solution is. Works good.
 
I use Optimum No Rinse Wash&Shine and Optimum Detailer. I have noticed some streaking like you on the glass. With the ONRW&S it comes down to how wet the waffle weave towel is. Follow up with glass towel and problem solved. When the Detailer showed streaking I wondered the same as you-was it the same on paint? My car has black shiny stripes on the hood. Did a test spot in bright sunlight and there was zero streaking. Conclusion Detailer doesn`t leave streaks on the paint and the ones on glass need to be removed with the glass towel. The glass towel is a slightly tighter waffle weave towel (mine is white and use only on glass).
 
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