Hi, there. Brand-new 2019 less than two months old. Purchased iron remover primarily because i want to use it on my wheels (it shares many properties as Adam's wheel cleaner) and give my panels a good coating to check for iron deposits. However, i'm a novice and scared of claying my new car (yet). So do i NEED to clay and polish after using this? Also, is this safe on trim like chrome and plastic? Thanks!