pH Factor:
Its very important to keep this in mind when choosing products that come in contact with your photos {pens, papers, stickers, stamp ink, etc} The pH scale runs from 0-14 and the lowest the pH factor the more acidic the product is. You want to keep it somewhere between 7 and 9. Just because something says that it is Acid Free does not always mean it is the best for your photos. SU! has a wonderful line of products that have been scientifically tested for safety!
Lignin-
Lignin can cause your photographs to turn yellow and become brittle over time. Its important to choose products that are lignin free. SU! Products are lignin free.
Buffered:
Paper that is buffered is less likely to break down when exposed to acidic memorabilia.
Well, you have been educated on keeping it safe!
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