Acrylic mirrors suited for marine enviroments

Hi all
I am wondering if there any acrylic mirrors that do not get black spots or are well suited for boat interiors.

Obviously a regular acrylic mirror or even one that is advertised as hard coating would not be suited for a marine environment? What do I need to look out for??

If anyone could point me in the right direction I would be so thankful.

 

A boat interior is less humid than a bathroom with a shower. Any mirror would be fine.

 

Yes there are.
They have heating elements embedded in the mirror.
As an added bonus, they don't fog-up.

EDIT: But they are not acrylic.

 

Thank you for your responses. I guess I need to clarify my question. I am working for a plastic distributor that sells acrylic mirrors. We got a contact that wants to buy our acrylic mirrors to install in a yacht, in the cabin. Yet these mirrors would be indoors but I believe that after one or two years, the aluminum backing would begin to rust if it was not marine grade. What do you think? Do you know any acrylic mirrors for use in boats?

 

Don't you put a protective coating (like paint or laquer) over the metal layer to protect it from mechanical damage? If you do make sure the edges are also coated that's where corrosion starts. If you cut the mirrors from a presilvered plate you must paint the edges afterwards.