Adhesives from Integra and our SolidSurface.com Surfacing Adhesive both come in a dual cylinder cartridge that requires a special  adhesive applicator gun with 2 pistons.  Because the adhesive is a 10:1 mix ratio, it can't be dispensed properly without the applicator gun. If you try to use something else, the ratio will likely be off and the adhesive may not harden throughout or cure correctly.