SJH Projects, UK.
SJH has developed a blast suppression technology called XPT. Designed to mitigate the effects of both blast shockwaves and the destructive force of propelled fragmentation carried along by the shockwave. This product can be applied to the undersides and sides of thinly skinned military vehicles, used for cladding on building walls and fabricated as blast suppressant road-side panels affixed to rigid frames to protect airport fuel depots and related applications. XPT can be simply described as a stone sponge. Its inherent porosity allows the blast shockwave to enter its structure and there, thousands of small air chambers slow the blast down, absorbing 65% - 90% g-force reduction, trapping it and then making the sponge expend itself in the process. UK tests on a typical military type vehicle using a 6Kg TNT equivalent buried 100 mm below the road surface resulted in no ruptures of the backing steel joints. XPT is currently being used on NATO and some UK vehicles in Afghanistan.