Is it true records are sealed to look better....

Let's be very clear about this "mold release agent" thing and put it to bed once and for all. The hot vinyl biscuit gets deposited between the two preheated stampers and the biscuit is then pressed. The stampers are cooled via water jackets, separated and the record is released from the press. There is no added anything to the process. There is no "PAM" that is sprayed onto the stampers or treated to the prestamped biscuit. It is simply the vinyl substrate on the record surface, nothing else.

New records don’t need to be cleaned. There’s no mould release nothing, never has been, never will. Just nonsense from the misinformed. Ultra sonic cleaners are snake oil.

So I just opened a brand new Yarlung LP - - volume 2 of the Yuko Mabuchi - an audiophile pressing in a lovely non static inner liner. 

The disc was covered in a fine patina of card or paper scraps, probably from the jacket or something -- so whether or not mold release agent exists or not the assumption that new records are in any way clean is patently false.

On other threads there are postings of the far from asceptic interiors of pressing plants. Why wouldn't you clean a disc before playing?