I looked at some threads on this forum regarding photo albums and there seems to be mixed reviews. The two threads below mentioned Pioneer brand, which perhaps many stamp collectors use since it's a very common brand. One thread was positive on Pioneer, and the other negative.
https://www.stampcommunity.org/topi...whichpage=1&https://goscf.com/t/47694I have new MNH gummed stamp sheets that I would like to store and don't want to find out a year from now that the gum has stuck to the acid and lignin free paper. I don't want to lose $$ on what may become stuck and worthless postage.
On one hand, I don't want to be penny wise and pound foolish, but on the other hand, I don't want to buy something just because it's marketed for a specific purpose. For example, there are glass cleaners that are marketed specifically for certain objects, whereas other glass cleaners can work well on those objects too.
There are a bevy of "archival" and acid free sheet protector brands and that seems like a reasonable way to store gummed sheets, since the gum won't stick to plastic over time. I don't know how strictly or loosely that term in used. The only downside is when turning sheet protectors in a binder, it's less rigid/sturdy vs a photo album.
About 10 years ago, I put a lot of 4"x6" photos into a Pioneer acid and pvc free photo album and they are fine with no stickiness or discoloration. I live in a dry climate with very low humidity.
Would love to read more of your comments.