....errrrr...ummmm.....plexiglass (lexan, acyrlic, etc).
Well, I give up.
I simply can't clean it.
Plan A:
Warm water flow (glass assembly removed from scanner) to remove oils followed by a rubdown with clean paper towels.
Result: light streaking
Plan B:
Alcohol flow, followed by drying with a paper towel.
Results: Streaks (not AS bad)
Plan C:
Rubdown with moistened alcohol towel, followed by buffing with a NEW lint free optical type microfiber rag.
Result: Lighter streaks (barely visible by tilting surface to light source) and minute dust particles throughout (lint free my ass).
I put the scanner back together, and it probably is "fine" but it ain't perfect.
Anyone know how to get plastic glass REALLY clean?