Hot-fix tape, also known as transfer tape, is used in rhinestone applications to help transfer rhinestones from a design template to fabric or another surface. The tape has an adhesive side that temporarily holds the rhinestones in place, allowing for precise positioning of the design. Once the rhinestones are aligned, the design is pressed onto the fabric with a heat press or iron, activating the adhesive on the back of the rhinestones (the "hot-fix" glue) to bond them permanently to the material.

The tape ensures the rhinestones stay in the correct pattern during the transfer process.