(Cannot be shipped, must be picked up) Boron, used extensively in thermic ignition compositions because of its extremely high heat of combustion, especially in BKNO3 mixtures (combustion @ 5,030° F), is combined with potassium nitrate (75%) and Ethyl Cellulose (1%) granulated into a flowable ignition mixture with a heat of reaction much higher than most any other ignition prime. It is used in many military devices, automotive gas air bag cartridges and other industrial use. This commercially produced igniter composition is 24% Boron for reliable ignition of most any pyrotechnic mixture. With boron prices being what they are, you cannot make it yourself at a lower cost than this, nor will you find it anywhere else at any price! Easy to use, simply press the granules into place or they can be mixed with 8-10% nitrocellulose lacquer and applied. REQUIRES AN ATFE TO PURCHASE !