White stains on glass from chemicals

[Reno]

Does anyone know how we can remove white stains on glass? the whole rear windshield of a clients car has a white haze from somekind of chemical. its all over the place. tried to remove it with rupes white/yellow pad and rupes glass compound but nothing seems to work.Also tried many cleaners. its like these chemical agents or whatever, entered the pores of the windows.
View attachment 69790

 

[Mike PhillipsMike Phillips is verified member.]

This looks bad,

Glass is not really porous, not like a sponge at least.

My guess is you simply need to get more aggressive with one of the below or all 4 things.

1. More aggressive pad
2. More aggressive product
3. More aggressive tool
4. More time, tweak your technique

 

[Reno]

This looks bad,

Glass is not really porous, not like a sponge at least.

My guess is you simply need to get more aggressive with one of the below or all 4 things.

1. More aggressive pad
2. More aggressive product
3. More aggressive tool
4. More time, tweak your technique

CONSIDER this, this is CLEAN right now :laughing:

if the above all fail...then what?

change the glass