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Preservation Technologies, L.P. provides deacidification products and services for libraries, archives, and consumers worldwide. From treating the valuable books and documents of the world’s leading research libraries to preserving family memorabilia and stamp collections, our patented products are manufactured with the same level of care for the object, user, and environment.

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How it works

Take a tour to learn more about the Bookkeeper® Deacidification Process.

Abbey pH Pen

The Abbey pH Pen will remain available in its original chlorophenol red formula. Learn more.

The MediaPreserve

Preservation Technologies announces the opening of The MediaPreserve, an Audio Visual Laboratory.