MR-97 Mold Release
MR-97, the first Boron Nitride Spray we've ever recommended. In fact, we've always suggested staying away from Boron Nitride, but MR-97 is different. MR-97 is an incredible alternative to kiln wash for metal molds or detailed ceramic designs. It is very easy to apply, durable and produces slumps and castings with beautiful, spur-free surfaces and edges. This 13-ounce can will prime about 20 medium molds. After 4 or 5 firings in a mold all you have to do is touch it up. Try it, it's unbelievable.