I'm sure the sweating issue is very real for you... it is for me. But honestly, worrying about it makes it worse, and you can be sweaty and still be a good poler.
I sweat a LOT. Like, I soak through clothes when I run. I occasionally slip and fall on my yoga mat because the sweat is pouring down my body. There is no point in blow drying my hair in the summertime, because I'll sweat faster than my hair can can dry. It's that bad.
I also struggled with sweaty hands and body while poling, and tried everything to solve it. Some things didn't work, other things only worked some of the time. But I also realized that my issue was a combination of sweat and lack of grip strength. I ended up buying a second pole in a stickier finish and smaller size, which helped a lot. I still slip when sweating a lot and I do have to wipe down the pole a lot, but I'm progressing and getting stronger.
I recently sold my first pole (chrome 50) and I helped the new owner set it up for the first time. When I went to test the pole for stability, I surprised myself. Even though I was sweaty, I had as much grip on the chrome 50 as I do on my TG 45 because I'd built up some more strength in my hands. Keep practicing, you may find that your sweat problems will never go away, but your grip problems do.
On really bad days, I like using the Mighty Grip tacky gloves. You can always get a pair and use them to train, and your grip strength will improve even while using the gloves.