Feltwell
Member
- Messages
- 6,378
- Location
- Shropshire, England
Aerosol brake or carburettor cleaner - available from any auto parts shop - shifts the vast majority of marks on pretty much anything I find, with a bit of elbow grease. It's a fairly volatile organic solvent of some kind, so I would really only use it if what you've got there is plain uncoated glass.
If it's got any kind of coating on it - or you're in doubt - speak to the supplier first!!
If it's got any kind of coating on it - or you're in doubt - speak to the supplier first!!