View source for PS 4000

[[File:993_4000silo.jpg|thumb|PS 4000]]
== Description ==

[Preservation Solutions, Chicago IL] A brand name for an aqueous adhesive emulsion of [[polyvinyl%20acetate|polyvinyl acetate]] formulated for bookbinding and book repair. PS 4000 is acid-free and dries to form a clear flexible bond.

== Physical and Chemical Properties ==

Meets ISO 14523 - Photographic Activity Test

==Resources and Citations==

Note: As of 2022, this product was no longer found on the Internet

* Preservation Solutions: [https://preservation-solutions.com/collections/leather-care Products] Accessed Oct 2022

[[Category:Materials database]]