How can I remove streaks on my dodger glass

I'd be interested in any solution as the aluminum framed windows on our Fulmar are getting what appear to be aluminum related smudges and streaks, not responded to my attempts with kitchen cleaner.
 
My dodger has flexible windows [ isinglass ? ]

That got me intrigued.

Isinglass: "a substance obtained from the dried swim bladders of fish".
But also: "Thin transparent sheets of mica called "isinglass" were used for peepholes in boilers, lanterns, stoves, and kerosene heaters because they were less likely to shatter than glass when exposed to extreme temperature gradients. Such peepholes were also used in "isinglass curtains" in horse-drawn carriages and early 20th century cars".

Vinyl would be more usual, but perhaps called something else over there.
 
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