It will work but it's not the best solution. "Rubber cement" is just bits of rubber dissolved in a solvent. It will stick but it's only an adhesive. Better patch kits (Rema Tip Top) use vulcanizing fluid which contains an accelerator in the fluid and a rubber forming compound on the patch (the red part of the patch). The accelerator reacts with the compound on the patch to form new rubber bonds...not in the adhesive "stick to it" sense but in the chemical bond sense. It's not just an adhesive but it forms new rubber which more permanently bonds to the tube than just plain rubber cement would.

Rema patch kits cost a little more than the Sunlite but they work more reliably and more permanently. It's worth the extra cost.