Basically, adhesives are sticky substances. Many are commonly called "glues". Gluing can be a science and is very difficult for certain materials or combinations - maybe this reference chart or thistothat.com can help!
A special MaterialInfoBox for adhesives
is in the making might be useful, containing information like press time or solvents that don't apply for many other materials. Please talk to Lukas if you would like development to be accelerated!