Windscreen

[QQman78]

Hi,
My windscreen keeps on producing noisy sound when wiper is on.
If I not wrong, I used to apply rain repel on it.
Is there any chemical to strip off the lay on the windscreen or I have to replace a new one?

[nakshire]

try put mama lemon in your wiper water there.

[jonpaul0104]

Hi,
My windscreen keeps on producing noisy sound when wiper is on.
If I not wrong, I used to apply rain repel on it.
Is there any chemical to strip off the lay on the windscreen or I have to replace a new one?

use comma glass scrub....do a search on it....