DesignationC4 mouldable plastic explosive
Composition classRDX-based; approximately 91% RDX published
Colour and formWhite to light-grey mouldable putty
Published density1.58 g/cm³
Published detonation velocityApproximately 8,040 m/s
Published detonation pressureApproximately 29 GPa
Water resistancePublished as fully waterproof
Reference packagingVacuum-sealed M112 block; 1.25 lb per unit
Published shelf life10 years under controlled storage
Transport classificationUN 0048 · Hazard Class 1.1D · Compatibility Group D