Pentolite
Pentolite is a composite high explosive used for military and civilian purposes, e.g., warheads and booster charges. It is made of PETN phlegmatized with TNT by melt casting.
The most common military variety of pentolite is a mixture of 50% pentaerythritol tetranitrate and 50% trinitrotoluene.. This 50:50 mixture has a density of 1.65 g/cm3 and a detonation velocity of 7400 m/s.
Civilian pentolite sometimes contains a lower percentage of PETN, usually around 2%, 5% or 10%. Civilian pentolites have a detonation velocity of about 7,800 metres per second.