Semtex is a general-purpose plastic explosive containing RDX and PETN. It is used in commercial blasting, demolition, and in certain military applications.
Samples of semtex and other plastic explosives
Plastic explosive is a soft and hand-moldable solid form of explosive material. Within the field of explosives engineering, plastic explosives are also known as putty explosives or blastics.
Disposal of munitions with plastic explosives; note the malleability of the white plastic explosive charges
A C-4 charge packed onto a marine anchor chain
PE4 sticks, used alongside the L3A1 slab version by the British armed forces prior to the adoption of the later L20A1 block/L21A1 slab PE7 and L22A1 slab PE8 explosives
A 1.25 lb (570 g) demolition charge of C4 explosive