So here is a picture of some PMI Pit Rope that was left rigged in a cave and when we returned two months later this is what it looked like.
So someone said that rope manufacturers used to use an organic lubricant when making the rope and this would happen (this is older rope) and that they changed to a non organic one. But then I got some new PMI webbing and after one month in the cave it also looked like this. The cave is pretty dry and around mid 40 something degrees. Anyone have a similar experience? None of my project ropes or any other pre-rigged project ropes I have seen in this cave or any other have ever had this growth.