There is a sealant for pinholes, to apply before easy-lease? This release works very well, but it the mold has pinholes, it would be necessary a sealant

I USE easylease then g50

Once out of mold flat the pinholes off

G50 is a gel coat, ok, if you use it you don't have pinholes into the part. But i'm talking about the mold surface. If you have a little bubbles of air in the gel coat, or dust when you apply PVA, the mold surface has pinholes. Easylease isn't a sealant, so it doesn't fill these pores, and the surface of your part will not be smooth, besides having a more difficult release of the part

Easylease claims to be a sealer/release agent all-in-one. I don't know how, as every release I've used requires 2 applications of their respective sealers (Chemlease, marbocote etc). However, I think pinholes are rather large for any sealer to cover. They normally seal microscopic porosity, and they wont even cover 1200 grit scratches.

You are gonna have to fill the pinholes somehow. This depends on what your mould surface is made of though.