I usually use Cutlers, but be warned, I used a glue and tar remover for preparation after the protective film had been removed (something I have always done) and tha last wheelcover face damaged very badly – as if a coating melted. I did mention this to cutlers who basically said never had that before, tough luck mate buy another one. Apparently according to Cutlers no preparation is required other than removing the plastic film. Good covers, not especially impressed with their attitude though.
Alan D