Slumpy's Scientific Sticky Serum is the the best glue to stick metal and glass, and just about anything else, together. Slumpy's Scientific Sticky Serum is a two part serum that when mixed creates the strongest of bonds. In order for the adhesive to cure properly it does need to come completely into contact with the activator. For gaps over 0.020 inches, use Activator on both parts and apply adhesive over one activator primed surface, being careful not to touch adhesive applicator to the other primed surface. Keep in mind, you will get a stronger bond with metal to glass than you would glass to glass. Add to metal brackets to hang glass on the wall. 100+ Applications. Clean both surfaces. Apply one serum to bracket, the other to your glass piece. Hold the two sides together for at least one minute. Mount when completely dry.
Click here for a guide on how to use Slumpy's Serum.