A spray contact adhesive like Clearco 444 or 'Sta-Put'. Both available where you buy foam or laminates (like formica)
Wood, bamboo, and Cork are considered to be the most environmentally friendly. It’s important to consider the glues, varnishes and sealants involved though because the glues used in cork flooring, for example, may contain formaldehyde. Bamboo has also come under fire for being overly processed or using formaldehyde-laden glues. Hardwood is usually free of toxic adhesives because of its tongue-and-groove installation. So hardwood would probably be your best choice.
Depends upon what you're sealing in, and how long it has to last. Wax is the standard option, cheap and easy, but there are a million glues, caulks, and other sealants that will do the trick.
Glues come in many different colours.
My two favorite glues are Shoe Goop and Gloozit. They are both silicone type glues .
Thick glues are called 'gel' glues.
Almost all glues are dangerous for the eyes. Particularly so are the cyano-acrylites, (krazy and super glues )
Some glues, such as PVA glues in particular, can absorb water.
CA is the 'family name' for super and crazy glues and other cyanoacrylite glues.
There are thousands of glues with many different ingredients. Most of the modern glues have chemical bases.
Most glues would be insulators. A few specially formulated 'glues' are conductors.
Cork comes from a cork tree :]
cork comes from a cork tree