Is wallpaper paste made from crushed up fish bones?

No. Wallpaper paste is usually made of flour or starch.

Although the label on commercial paste lists a large number of ingredients, making your own takes only two ingredients, and they’re all natural with no preservatives or chemicals.

Starch-based wallpaper paste works best with what professional paper hangers call paper-paper, which is pulp paper without vinyl. Starch paste is also not the best choice for hanging fabric. The bond is quite aggressive, so removal takes effort.

Homemade paste is safer for the environment and your living quarters, but use the paste within three days of mixing it to prevent spoilage and overthickening.

Learn How to Make Wallpaper Paste With Starch from SFGate.

Wallpaper pastes and adhesives differ depending on which surface and the paper type you are working with. Find out what different types of wallpaper adhesive are available and what situations they are best used in at DIY Doctor.

Wednesday, February 15 2017
Source: http://www.wisegeek.com/what-is-wallpaper-paste.htm