Bright White Acid-Free is a brilliant choice
It’s whiter than the whites you’ve used before. As a result it dramatically enhances colors of any artwork. Its pH between 7.7 and 8.5 calcium carbonate buffer prevents acid migration from the foam board that would cause irreparable damage to the paper items being mounted.
25 sheets/box
902022
Discontinued by manufacturer. Limited stock available. Best alternative AF4060/8