What kind of adhesive bonds silicone to stainless steel?

We manufacture a piece of restaurant equipment that is made of 304 stainless steel, and is designed to mount over the side wall of an ice bin. It is also removable. We place FDA silicone pieces on the bottoms of our units to protect the ice bins from being scratched. The silicone pieces are flat, roughly 2″ x 2″, and bond to flat surfaces of 304 stainless steel. We currently use an adhesive-backed silicone sheet to make these protective pieces, but have found that the adhesive and silicone tend to separate over time. Any recommendations would be very much appreciated.