Britannica AI Icon

plastic explosive

explosive
Also known as: PE

Quick Summary

Plastic explosives are a type of explosive made from a soft, clay-like substance that can be molded into various shapes. These explosives are designed for military use and must be insensitive to shock and friction, yet possess excellent shattering power. They are also required to withstand long periods of storage without deteriorating and must be able to be fired in projectiles or dropped from aircraft without premature detonation. Some plastic explosives need to be highly resistant to water.12

Examples of military explosives include picric acid and ammonium picrate, which were used in shells during World War I and World War II, respectively. Mixtures of TNT and ammonium nitrate, known as amatol, were also developed to conserve TNT and reduce costs. More powerful explosives like RDX and PETN, often combined with TNT, were used in World War II for applications requiring high shattering power. Plastic demolition explosives, such as Composition C-4, contain a high percentage of RDX mixed with oils, waxes, and plasticizers, remaining pliable in a wide range of temperatures.2

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.