ARMEX™ recommends that the customer use ARMEX™ Blast Media– Flow Formula M be used with a #3 Nozzle at 30 psi blasting pressure in a Dry Blast Cabinet or ARMEX™ Blast Media-Flow Formula XL be used with a #3 Nozzle at 30 psi blasting pressure in a Dry Blast Cabinet or ARMEX™ Blast Media-Composite be used with a #3 Nozzle at 30 psi blasting pressure in a Dry Blast Cabinet.