Same experience for me.I have used ceramics on glass with mixed results. On the windshield I was getting some wiper chatter so I stopped using it there. On the rear hatch glass it does keep it cleaner longer. Those windows always tend to accumulate dirt. I didn’t get any wiper chatter and I think the reason for that is the short wiper.
I recommend Griot's Glass Sealant. No wiper chattering and very effective.I have used ceramics on glass with mixed results. On the windshield I was getting some wiper chatter so I stopped using it there. On the rear hatch glass it does keep it cleaner longer. Those windows always tend to accumulate dirt. I didn’t get any wiper chatter and I think the reason for that is the short wiper.
Agreed, the dedicated glass coatings last way longer. As you mentioned the friction of the wiper blade wears them down quickly. The dedicated products have better durability. To save money, I use the standard ceramic or graphene spray on, wipe off products on side and back windows and they last for months. For the windshield I use Aquapel and can easily get 10 to 11 months of use, even here in rainy Seattle, WA.I think if you apply some to the wiper blade also it may reduce chatter. However, I think most ceramic QDs won’t last on the windshield if you use the wipers often. The main difference with the real glass coatings is in the durability. I use Diamond Glass and it is insanely durable. I’m going on 10 months on my beater and it still works, with some touchless car washes and plenty of wiper use.