I am lead to believe that palm uses a plastic zipper, unlike Kokatak's YKK metal zipper on the GMER.
I would clean the zipper with water, dish soap and an old tooth brush. Then lube with McNett Zip Tech
. Check the spacing on the zipper car to make sure that it has the same opening size on both sides. On metal zipper cars, you can squish the sides closer together to make the carriage align the zipper better. I would also look at the zipper itself and determine if any of the teeth are misshapen or damaged, especially in the area where the carriage moves past the teeth yet does not close them.
I'd try Kayak Academy for repair first. Link: Kayak Academy
You can also email them at email@example.com
. I know they do a bunch of Kokatat repairs, but also work on other suits. Not sure if they can do a full zipper replacement on a Palm.
If they can not repair or replace the zipper, I would then contact Palm Equipment Europe. Link: Palm Equipment Europe
. Palm can do it. I would ship it back to them in late November and hope to get it back by April.