hexagonal boron nitride powder is the name of the game for creating a more durable and longer lasting product. Compared to graphite, boron nitride is far less susceptible to the dreaded dross and has a storied shelf life of up to 20 years. It is also known for its superior heat and oxidation resistance, which makes it an excellent choice for high heat applications ranging from automotive to industrial boilers. Boron nitride is available in a variety of forms from small, lightweight powders to larger format pressed rods, bars and slabs. It has been the subject of some controversy but is a worthy contender for the coveted title of Best Kept Secret.