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M2 Technical Topics > Cosmetic Maintenance (Wash/Wax/Detailing/Exterior Restoration & Repairs) > Washing in sunlight

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      02-15-2020, 10:50 AM   #1
mcvaughan
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Washing in sunlight

My car is ceramic coated and use water filtering. Can I wash in the sun without introducing water spots, or is it more related to hot weather?
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      02-15-2020, 10:58 AM   #2
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I have found that no matter how pure the water is, I get spotting. I avoid washing under the sun as much as possible.
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      02-15-2020, 07:48 PM   #3
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Regardless of all that, washing in direct sunlight is annoying. I have a DI spotless system and if I make sure to rinse REALLY well I get no spotting on my car. But it's just a huge annoyance.

I have to rinse the car as I wash. I basically stopped foaming the part of my car sitting in the sun because it dries out super quick. After rinsing and during drying my drying aid dries on the car within seconds of me spraying it. This time of year sucks as the sun is at a low angle and gets on my car even under the car port.

If you have to wash with the whole car in the sun you basically have to wash one section, rinse, wash another section, rinse. Then go back and rinse the previous sections to rewet the spots and cool down the section. Of course that depends how far you want to go.
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      06-06-2020, 07:55 PM   #4
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Rinseless wash will solve your problem forever. Water isn’t on the car long enough to dry. I’d highly recommend Wolfgangs rinseless wash.

Last edited by Dasnub; 06-13-2020 at 02:11 PM..
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      06-12-2020, 07:16 PM   #5
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Quote:
Originally Posted by Dasnub View Post
Rinseless wash will solve your problem forever. Water isn’t on the car long enough to dry.
Hmmm

Of you don't want spots dry the car it's not hard. Can recommend the Gtechniq grey towels.
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      06-16-2020, 08:02 AM   #6
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My success lately has been just to do an ONR wash. Problem solved, minus the dirty wheels.
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      06-16-2020, 08:05 AM   #7
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Quote:
Originally Posted by HazChem View Post
I have found that no matter how pure the water is, I get spotting. I avoid washing under the sun as much as possible.
This.
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      06-16-2020, 09:12 AM   #8
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Quote:
Originally Posted by mcvaughan View Post
My success lately has been just to do an ONR wash. Problem solved, minus the dirty wheels.
Brown Royal will change your life with wheels. Spray on, rinse off, non-acidic. If you power wash it off you literally need zero agitation.
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