home |  electronics |  toolbox |  science club |  tuxtalk |  photos |  e-cards |  online-shop



February 2024

Nu-finish scratch doctor for the windshield

My toyota dealership offered years ago a windshield treatment that would keep the car windshield clear and you could drive in the rain even without wipers on. It seemed cool so I tried it. 30$ was expensive for just one treatment but I was also blown away by the result. The windshield was just repelling water. At high speed on the highway I would not need wipers. The water would just form little beads that would roll up the windshield. At low speed one would occasionally use the wipers. Visibility was really good.

However this did not last long. After about 2 to 3 month I noticed tiny lines and scratches that were visible on the windshield. The area where the wipers moved was visible when it was not raining. It was like a strange haze and the sun would reflect on the scratched film. Driving in the evening became impossible. The headlights of other cars would reflect on the scratches and visibility was really bad. It was dangerous to drive like that.

I tried everything to get rid of this film that the windshield treatment had created. I rubbed and cleaned the windshield with soap, glass cleaner, alcohol, hot water,... nothing worked. This film stayed and I was furious. However the film degraded further over the next two years and it started to disappear leaving patches where I could finally see something without the glare and the scratches. Eventually everything was gone but the car was basically unusable during the evening for a period of about two years.

I warned all my friends to stay away from this stuff. It was a scam. I was therefore rather sceptical when Scotty Kilmer made this video where he suggested to use wax free nufinish polish to clean the windshield:

Scotty Kilmer windshield, nufinish
Scotty Kilmer windshield, nufinish, https://www.youtube.com/watch?v=WTkbwli1i2Y


However most of the things that Scotty says are true. So I tried it just on the passenger side and on one car only. It workes in a similar way as the windshield treatment offered by my car dealership but without the scratches and the problems of the aging film.

I apply this now once a year before the winter. It helps with visibility and keeping the windshield clean. I can recommend this. One bottle costs about 15$ and because you need only a tiny bit it will last for several decades.

nufinish scratch doctor, bought in canada
nufinish scratch doctor



Back to NPA blog index

© 2004-2024 Guido Socher