' isinglass ' material ?

[bgreene]

From years of having plastic curtains.......a few simple " do's and don'ts "

Don't - roll up a section such as the center front to get fresh air without rinsing off the salt water first. The salt will dry, act as abrasive, and scratch permanently.

Do - wash with simple dish wash detergent and water, then WAX using a simple, cheap wax such as turtle. Result - no streaking and super sharp, clear window..... I've found this works much better than the supposed "special products" for these windows that leave a film.

Do - store either rolled up very gently to avoid any kinks, on boat, or completely flat.

Result - no fading after years and clear as glass !