Len":1dapb2jy said:I have no idea about mold damage. Fortunately, I've never encountered the problem. Cork doesn't absorb saltwater or much of any liquid for that matter, so it's a good material in that respect. It's non-toxic too. Admittedly, it's not the best vibration control material, but its advantages were convincing for me. I had cork under my pump but it only did a marginal job. I've since switched to vibrapods and there is virtually no vibration transfer to the cabinet now.