Finding a channel for sliding glass

Could you glue a plastic u-channel onto the glass itself to increase the thickness? Where to buy such material...I would start at an Ace hardware store with the glass in-hand and the dimension of the channel width inside the window frame.

I just went on ebay and searched for "plastic u channel" and found some there in various sizes. Someone is bound to sell what you need. It's all about "the search". Google it too.