Barrier coats. Mold longevity. - 2002 J. Broz
These sprays represent aids to casting.
This Primer can be used with lacquers or enamels. It makes a good barrier coat.
The middle spray is a release (PTFE film)
This paintable mold release is also good for rigid molds
The silicone spray release is a questionable choice.
It will remain as an unpaintable oil that must be cleaned or sandblasted from the surface.
Your parts will release wonderfully, but the silicone oil is hard to remove.
Also, the overspray can travel around your shop and contaminate your paint area. (Fish Eyes)