0orksecurity 8 years ago ReplyUpvoteKeeping the pictures from fading is a matter of: 1) Making sure the chemistry is right -- that the processing is fully neutralized, and that everything in contact with them is either pH-neutral or buffered appropriately. That includes the magnets and whatever you're using to seal the pictures. 2) Protecting them from ultraviolet light. 3) Protecting them from unreasonable amounts of heat. (Rule of thumb: If you're uncomfortably hot, other things probably are too.) There's a lot of info on the web about appropriate archival materials for photo storage; not much about archiving magnets. The best suggestion I can come up with would be to use those materials to encapsulate the photo, then affix that encapsulation to the magnet.