The C-800 booster (800g) is orange in colour and is designed to be used in the deeper blast holes (25m and more) to maximise the booster diameter to hole diameter ratio and increase the subsequent “bore-hole pressure”. As with the C-400, once in the blast hole, the inverted cone design maximises the surface contact area between the booster and explosive column above it. Trojan™ cast boosters deliver the driving force required for generating maximum initiating energy and blasting effi ciency. They provide reliability, safety and durability for all underground mining, opencast mining and quarry applications. By combining high detonation velocity (7500m/s) with high density (1.6g/cm3), Trojan™ cast boosters optimise detonation pressure (225kbar*) and consistently out perform any other type of commercial boosters. *Pressure = 2.5 x Density x (Velocity)2 x 10.