Old Polaroid preservation?

[j666]

@Ornery_Bob

I think this is the key information here:

The current one had pages with a slightly sticky finish and clear film to put of the pictures, sealing them to the backing.

I believe this album has worked well because, as you say, the clear film seals to the backing and limits exposure to air/humidity.

Can you think of anything that could be special about the film covering (I mean in the album not the polaroid)?

I’d buy something nice for them, but I just don’t know what has worked so well so far.
And I don’t know if I can scan them - that might damage them.

Thank you all for your suggestions.