TO CONNECT ELEMENTS OF THE WALL TOGETHER IN A METHOD THAT IS BOTH STRONG AND WATER PROOF, HOT GLUE PROVIDES A VIABLE SOLUTION. SIMILAR TO THE SURFBOARD WAX, THE GLUE CONTAINS RESIN AND WAX, IN COMBINATION WITH ETHYLENE VINYL ACETATE AND VARIOUS POLYAMIDES.

THE HOT GLUE STICKS ARE A FORM OF THERMOPLASTIC, WHICH REFERS TO A MATERIAL THAT WHEN HEATED ABOVE A SPECIFIC TEMPERATURE, IT BECOMES PLIABLE AND THEN RETURNS TO A SOLID STATE WHEN COOL. HOWEVER, WHEN FROZEN, IT EXHIBITS SIMILAR PROPERTIES TO GLASS, BECOMES FRAGILE AND CAN SHATTER. OTHER EXAMPLES OF THERMOPLASTICS INCLUDE CONTACT LENSES, PLEXIGLASS, PLASTIC FURNITURE AND CAN EVEN BE FOUND IN SOME WALL PAINTS.

THIS TYPE OF PLASTIC CAN BE REHEATED, AND SUBSEQUENTLY RESHAPED, WHICH ALSO MEANS THIS MATERIAL CAN BE RECYCLED. 

http://www.globalspec.com/learnmore/materials_chemicals_adhesives/plastics_elastomers_polymers/thermoplastics_thermoplastic_resins
18.03.2014