Makes your neoprene, rubber etc. last a lot longer.
I have had two pair of Darkfin gloves and YES it's totally kooky. BUT it's usually so blinking cold in Oregon water that you have to wear gloves and Darkfins thin Neoprene layer gloves substantial thermal protection without any loss of sensation. I don't like losing the tactile feel when I wear 2MM Ripcurl gloves. Not to mention it does give you a notable edge when paddling. This silicone spray makes the gloves tougher, last longer, and go on a lot easier. It's food grade so no odor and you can eat it if your a weirdo.