Composition 24.6 Potassium perchlorate 31.1 Potassium nitrate 11.5 Charcoal (air float, Willow or Paulownia) 4.1 Red gum 4.9 Sulfur 7.4 Iron Oxide (Black) 12.3 Magnalium (230 mesh, or dark aluminium) 4.1 DextrinDescriptionSeems to take fire as easily as a rough BP coating and it burns quick and hot to ignite what it's on. Source: Spanish PDF