If you are blasting with Alumina ceramic, Silicon Carbide, Steel shot or other hard abrasive and not using Boron Carbide nozzles a lot of money is being wasted.The higher cost of Boron Carbide nozzle is very easily justified. Not only will you get longer life but save time in less boron carbide ceramic nozzle change over, use less air and have a longer consistent blast pattern which will make your production more efficient