Onoff
In the land of the unfinished project I am King!
- Messages
- 12,691
- Location
- Sevenoaks, UK
Yep, the window channels are oft quoted as benefitting from silicone grease and that is where I have used it. But I've never tried lithium grease - have you?
Best stuff by far is Gummi Pfledge imho for window channels and door rubbers.