Black sealing gasket/double-sided adhesive replacement located between the aluminium frame of the iPhone 16 and its rear glass panel. It is recommended to replace it after opening the iPhone during repair.
This seal prevents dust and moisture from entering the iPhone 16 (NOT COMPATIBLE WITH THE IPHONE 16 PRO).
It is advisable to replace it after carrying out repairs to restore its original "waterproofing".
THIS ADHESIVE IS FOR SEALING THE REAR GLASS.