Have a Space Maker Duster I need a little help.....

Alright now that I have all/most of the glue off. What kind of glue does anyone receommend? Contractors cement in a tube, silicone, ?? The old stuff actually reminds me of the old tile and carpet glue you could use before the EPA banned all solvent based types of adhesives. It's sort of butterscotch looking, and hard as a rock! I'm open for suggestions........
Thanks.