How are colloids used in industries?

Colloids have uses in our daily life as well as in various industrial processes. Some of the applications where colloids are present are listed below.

• Pharmaceutical industry makes use of colloidal solution preparation in many medicines. A wide variety of medicines are emulsions. An example is Cod Liver Oil.
• Paint industry also uses colloids in the preparation of paints.
• Asphalt emulsified in water is used for building roads.
• In metallurgical operations the metal ores are concentrated by froth-flotation process which involves the treatment of the pulverized ore in emulsion of pine oil.
• The negatively charged rubber particles from rubber sol are deposited on wares and handles of different tools. Rubber gloves are formed by rubber plating on a suitable templates.