Epoxy.or Polyurethane Parfilm Paintable Release Agent in a 12oz aerosol can. Instead of using silicone based release agents, try Price Diriscoll Parfilm. Primarily for use with epoxies, this will also function with other resins. If you are casting in PU Fast Cast, select the Polyurethane Option!
Being silicone free, after washing your cast painting should be no problem as there are no Silicones present to cause fish eyes or bond problems.
The material places a very thin film on the mould surface which will help prolong the life of the mould whilst mainting the fine details.
Please note we have no image currently for the PU version