Boron Nitride Spray

I am returning this item as the spray does not release glass molds as advertised AND has left a unremovable layer of Boron Nitride on the glass as well as pitting the molds, which has resulted in pit marks on the glass. It is unfortunate that I received a product that seemed to be highly regarded and resulted in multiple ruined molds (which cost money to purchase separately) and ruined casting of quality glass.

This product was purchased to treat three curio and relic rifle barrels, that, although having good rifling, were pitted. Following the directions, after reading several posts from people who have used this product for their rifles, HBN was applied. The results were excellent. All barrels had the pits filled, non visible, and smoothed out after application. I also used product to treat approximately 50 rifle bullets, to reduce coefficient drag. These have not been reloaded yet, but others have testified as to the improved accuracy after using this product on their bullets. This product is also less expensive that others HBN products with the same chemical composition and net weight.