We purchased this product at a boat show. One of the "hell, lets try it" products we've fallen for. Snap Stick now has it's place on our boat. It has become essential on our boat. We use it for zippers, snaps, Locks, and most anything that need lubricating. It works great for plastic and metal. Although I've not used phone support for this Shurhold product I have contacted Shurhold for another product issue and their response was extremely positive and they immediately did what they said they would.
I would purchase this product again and will most likely add to our inventory when we attend the next boat show.