I do pool maintenance and repairs. I bought this tape because it was advertised as being moisture resistant and non-corrosive thanks to the stainless steel components. I accidentally dropped this cassette into an old swimming pool half filled with stagnant green water, leaves and small branches. Came back 7 weeks later to pump out and replace the pool liner and found the tape. Immediately after picking it up and without rinsing, I let it run for about 5 minutes and it retracted like it was brand new. If you work in wet conditions this is the best tape you can buy.