Originally Posted by
No.3
Find a very slim screwdriver or the like, something very slim and slip it in between the teeth and the top and eventually the bottom of the inside of the zipper pull. These are a pain in the bum, what has happened is the corrosion is holding hands with the teeth and the inside of the zipper pull and not allowing you to move it.
Slip the prodder in the gap just to loosen the corroded gunk and using the hot water, some sort of lube (I use silicone spray but I don't think the actual product matters) you just need to gently work the zipper pull each way until it gives up and starts moving. I use an old tooth brush to clean between the teeth...
You don't actually need to worry about saving the zipper pull, you just need to do the job without buggering up any of the teeth as you can get zipper pull repair kits and just replace the pull. More than likely the pull is buggered from the corrosion anyway... I've just had the same thing with my reel and softbait waist bag, saved half the zips and the others the pull just broke apart while I was trying to free it up. Missus saw me doing that and presented me with about three other bags needing the same treatment. Managed to save those. Seems like it's the fishing gear aspect that causes the corrosion to be so bad?