Black Diamond tests frozen runners and finds them slight stronger than dry slings.
“But what about when frozen? I'm told that when the water in the nylon freezes it suspends that lubricating effect. And also according to the article, their test results showed that frozen
ropes fared better than wet ropes, though not as well as dry ropes. In our testing, it appears that when frozen, the slings are actually stronger. Should we freeze all of our nylon gear before we go climbing? Of course not.”