If the bell hammer adheres to the painted iron plate, does it contain any ingredients that attack the paint film?

Painted iron plate is coated with urethane or baked paint
There is almost no problem if the coating film is strong against external elements.
However, if the paint film is not stable,
If it remains for a long time, the paint film may float
The risk of oil stains cannot be denied.
This is not limited to bell hammers
Almost everything seems to have the same conditions.