Tear Aid The bladder layers seal leaks and small cuts in the bladders, the perfect repair material for bladder eruptions. These patches are self-adhesive (peel & stick) and can be used to correct any material or color of the bladder. The specially formulated adhesive is incredibly durable for quick repair. The patches can be used on board bladders or hocks and sail materials. The patches come in a variety of widths and lengths and can also be cut for custom repair work.