MR-97 Separator is an industrial strength spray release for ceramic and stainless steel molds. It is easy to use, covers completely, and produces castings with beautiful, spur free surfaces and edges. MR-97 is the only Boron Nitride aerosol rated for higher fusing temperatures (up to 1800 f / 980°C). However, it is best suited for shallow castings and slumping.
After using MR-97 on ceramic molds, the surface will be sealed and prevents future use of traditional primers.