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Are Semtex and c4 the same?

Author

William Brown

Published Jun 22, 2026

Are Semtex and c4 the same?

It is also waterproof. There are visual differences between Semtex and other plastic explosives, too: while C-4 is off-white in colour, Semtex is red or brick-orange. The new explosive was widely exported, notably to the government of North Vietnam, which received 14 tons during the Vietnam War.

How fast does Semtex explode?

2.8. Calculation of the detonation characteristics

No.Explosive typeEXPLO5
Velocity of detonation/(m·s−1)
1Semtex 1H7463
2Sem-BC+RDX7643
3Sem-BC+HMX7778

What has the highest detonation velocity?

Octanitrocubane has a detonation velocity of 10,100 m/s, making it the fastest known explosive.

Which is stronger TNT or c4?

C4 is 18% more powerful than TNT. Ammonium nitrate in its pure form is a fairly weak explosive. When combined with fuel oil, however, it gains an explosive power nearly equal to TNT.

Is Semtex sticky?

Sticky grenade that can stick to anything. It has a set timer and cannot be cooked In-game description. The Semtex returns in Call of Duty: Black Ops: Declassified.

Does Semtex smell like marzipan?

The only difference was that theirs was packed with Semtex, a plastic explosive that smells like the almond confection marzipan, and his contained real marzipan.

What does C4 smell like?

Once the ingredients have been mixed, the solvent is extracted through drying and filtering. The final material is a solid with a dirty white to light brown color, a putty-like texture similar to modeling clay, and a distinct smell of motor oil.

What is the detonation speed of C4?

Table 3

No.Explosive typeEXPLO5
Detonation velocity (m·s−1)
1Comp C4 [21]7815
2EPX-1 [20]7398
3Semtex 10 [27]7370

What is the velocity of C4?

The detonation velocities range between 9000 and 15,000 feet per second. This product has no water resistance and fair to good fumes, if properly mixed and detonated.

Can a bullet set off C4?

C-4 is very stable and insensitive to most physical shocks. C-4 cannot be detonated by a gunshot or by dropping it onto a hard surface. It does not explode when set on fire or exposed to microwaves. Detonation can only be initiated by a shockwave, such as when a detonator inserted into it is fired.

Can you cook Semtex?

Semtex takes up the equipment slot. It is comparable to the standard Grenade but with some differences. It is actually a ball of C4 explosive with a timed detonator attached to it, thus, it cannot be cooked, though the timer is shorter than a Frag Grenade’s fuse.