[1] It was manufactured in thin flexible sheets with a rubbery texture, technically known as a rubberized explosive and is generally colored either reddish/orange (commercial) or green (military).
Detasheet C, the last and most common version produced, was made up of 63% PETN, 8% nitrocellulose, and 29% acetyl tributyl citrate (ATBC), an organic plasticizer.
[1] DuPont ceased manufacturing explosives in the 1990s and when they did the Ensign-Bickford Aerospace and Defense Company bought their product line, including all their equipment and trademarks.
The Detasheet trademark is now owned by the Ensign-Bickford Aerospace and Defense Company, which has been selling an identical explosive sheet product called Primasheet[1] since 1984.
A military variant of Detasheet, called Deta Flex, was manufactured in a single thickness (0.25 inch (6.25 mm)) and olive green colored.