Ceramic coated my wheels

I am having a new set of scs ray 10 wheels put on. I ceramic coated them before bringing them to Discount tire. I did the insides too and now wheel weights won't stick. They need to wire brush them a bit. Just a heads up for everyone else and my story of semi stupidity

 

What did ceramic coat them with? Zero reason to use a wire brush when the ceramic can be polished off

 

CQuartz 3. I know, I told them to just lightly sand or scuff with a pad but they are a tire shop and went all stupid on them.