What adhesive works best on foamboard?
When a project involves foamboard, it is important to recognize that some construction adhesives contain solvents that can attack the foam. Both Titebond Interior/Exterior Construction and Titebond Solvent Free Construction are recommended for bonding foam to porous surfaces. If the foam is being bonded to something non-porous these products cannot be used because they will not dry properly. In such a situation, Titebond Premium Polyurethane Construction adhesive would be recommended.