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Paintball is game in which players shoot opposing players with paint from airguns. These paintballs require special non-toxic, water-soluble and biodegradable paint. It is biodegradable because this water-soluble paint can be easily washed away by rain. In addition, the solubility of this paint allows the paint to be easily washed from clothing, generally leaving behind no stains.  This special paint is made from mineral oils, ethylene glycol, iodine, and food colouring. Once the paint is made it is encapsulated by gelatin. The paintballs are then cooled and hardened in a machine, allowing them to dry and take on a uniformly round shape. When the paintballs are dry, they can inserted into the specially designed airgun and expelled via the carbon dioxide cartridges.

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