Checking correct sub for question please : Info on binding glue aging color please
Pardon group... My I ask your experience in bindery and book repair. I have a fellow user in r/origami asking about the yellowing of glue as a hard copy ages. I'm assuming it's normal. The user is asking about quality and longevity of their purchased book to my understanding. Additionally, I've seen similar questions in r/manga as well for yellowing on purchased print material. Any resources or experience feedback on this topic, please? Thanks kindly, group.
Edit:: Kind thanks to this group for the feedback. Respects to your time and knowledge.