Can this be used to glue a 1 1/8" thick 1 sq.ft. granite corner shelf to porcelain tile walls in the shower if I use metal biscuits?

Hello, We are happy to help you with your project, however we would like to gather a few more details. So we can be of further assistance, please contact our Consumer Support Team at 800-966-3458 or through our website at www.gorillatough.com/contact and reference case #381590. Thank you, The Gorilla Glue Company