This gum resin, also known as Acacia gum, is obtained mainly from acacia wood and is produced in Many hot dry areas of the world, mainly Sudan, the rest of the Horn of Africa, Southern Arabia, and India. The resin occurs in colorless, yellowish or brown pieces, and is largely protein based. Gum Arabic is soluble in water and alcohol, or a mix of the two. It is usual to employ the gum with gunpowder type compositions only and is generally thought to be the best adhesive for Blackmatch and Quickmatch manufacture. In the strength of binding, Gum Arabic is superior to most other binders. Stars made with three to five percent Gum Arabic are suitable for hard flash breaks.