Is it OK to use PVA Release Agent on top of Meguiars Mould Release Wax?


Yes, many people do that, particularly when using brand new moulds. Remember that you are applying a water based product onto a waxed surface, so expect the finish to reflect that (i.e. fisheyes).

CFS - PVA Release Agent
CFS - Meguiars Mirror Glaze no.8