Did anybody made a mould of a car part that had been ceramic coated ?
I got parts in that have ultra protect 9H ceramic coating on them and there this is a 1K product I dont know if the easylease wil work on this .

Do a test man, always do a test. If ever you are in doubt about compatibility, don't commit to anything without doing a small test and making sure it will work as planned.

It should be fine. These types of 1k coatings work in a very similar same way as chemical mould sealers and are moisture curing, and they can be remarkably tough - even tougher than regular 2k coatings. They are designed to be chemically resistant and very stable once cured and bonded - but there are so many of them out there, and they are not all made equally. Definitely do a test and confirm with your own parts and materials so you can be certain.