Quote:
Originally Posted by aaexpert
Just a reminder... touchless washers use VERY strong chemicals to 'clean' and they often leave a small amount of residual on the paint which breaks them down quicker, including ceramic coatings and ppf. Compare it to taking a shower, using a Spray soap and not use a sponge...then only rinse for a short time and 'hopefully' most of the soap gets off.
Bottom line, hand washing is the only way to get the scum that builds up on the paints surface off properly and protecting the oem paint surface with either ppf or ceramic keeps the original layers safer.
The current specs of oem paint is : primer, paint, clearcoat, all 3 together equals the thickness of a dollar bill !
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If you live where I live, for part of the year we have to shut the outdoor faucets and drain or the pipes will freeze. That rules out handwashing for 3 to 4 months and those are the same months that ice and snow come down and salt often gets put down. Commercial car washes are the only way to get caked up road grime and salt off the car's finish. I happen to enjoy washing my cars but sometimes you just have to give in and roll through the tunnel.
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BMWCCA
Current: 23 760ix (Carbon Black/Tartufo) (after first one totaled) '23 X3; '25 530ix
Prior: BMWs (3,5,7 & 8 series (2x!)) X3, MB (C, E, and S), Alfa GTV, MGB, Audi (A4, A6), Saab, Volvo, Toyota, Lincoln, Chrysler, Oldsmobile, Chevy, Rambler.