Acid Burn


A permanent yellow or brown stain on photos and works-on-paper, caused by acids from wood pulps used in art and/or framing materials – leaching into the fiber of the artwork, causing the material to decompose and discolour. Acid Burn occurs when artwork is framed with paper materials that are not acid-free.

An example of acid burn resulting from acids leaching from an old mat board, onto and into the edges of the artwork.

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acme | 'akmē | n. Highest point; point of perfection