New racket rubber trouble

Hi PingSkills!
    I got a new bat, but when I clean the rubber with a damp sponge, the dust increased in number, and it lost its grip . (It has a smooth surface but when I rub a ball against it, I did feel it a little) It became sticky (tacky?) when I used the damp sponge but then lost it when I placed it on a table. I am still able to loop the ball and serve side spin with it though . Will the grip come back? Or is it just my... fingers?

P.S. I'm sorry for asking this dumb question

Thanks!

Hi Yu,

The rubber is probably dead and you will need to replace it.  Once it gets like that there is not much you can do about it.