I wouldn't call KAIO a sealant. I simply don't trust the acrylic protection it offers. It is a good chemical prep rpduct though.
For wheel wells, paint them, or get a cheeper dressing. Dressings last almost no time in there.
Yeah!
In my own car I get to it, but hardly ever to customers pay me to do these things.
95% of the cars in this area have overdone undercoating and petroleum products sprayed int he wheel wells or all under the car. It's awful, with a dull grey bleeding everywhere.