Honestly I've never really given much thought to wheel sealants as it just seems like wasted time to me. If anything I will clean mine up really well and then go over them with an AIO, I think I have a bottle of Pinnacle XMT and I just put it on real light with a microfiber towel. That seems to help with the water spots and a little with the brake dust. I clean my car enough that the wheels never need much work.