best glue for book spine

There are several types of glue that are commonly used for repairing book spines. Here are a few options:

1. Polyvinyl Acetate (PVA) Glue: PVA glue is a popular choice for bookbinding and is known for its strong bond and flexibility. It dries clear and remains flexible, which helps to prevent the spine from cracking or breaking.

2. Epoxy Resin: Epoxy resin is a strong adhesive that provides a durable bond. It is often used for repairing books with heavy covers or thick spines. However, keep in mind that epoxy resin dries hard and can be less flexible than PVA glue.

3. Bookbinding Glue: There are specific glues designed for bookbinding purposes. These glues are often pH neutral and acid-free to ensure they do not damage the pages or the spine of the book. They provide a strong bond while remaining flexible.

When choosing a glue, it's important to consider the type of book and the materials used in its construction. It's always a good idea to test the glue on a small, inconspicuous area of the book before applying it to the entire spine to ensure compatibility and desired results.