Give me please some advices !

I think you meant you get moisture on the rubber..right?? I used to get that too. You get moisture (very fine water particles developing on the rubber) when there is sudden temperature fluctuations from cold to warm.

Or do you mean that when you play hard and sweat a lot, your rubber gets wet?

Not sure what to do besides wiping it off or cleaning the rubbers.

Use Globe 999 topsheet on whatever spopnge you want. It is a very good performer in high humidity conditions where other rubbers fail. I like the 42 Degree Quattro sponge.