Coating technologies are part of each industry, either in the manufacturing process or the constructed product. Advanced surface treatments improve every facet of the industrialized world. Medical coatings make devised replacement prosthesis a fact. Without these specialised coatings the replacement body parts would corrode and become a foreign object actively refused by the body's natural defense mechanism. Medical coatings fool the body's defense system into ignoring the manufactured part and extending the helpful life of the replacement part multiple times over. Coatings also optimise the bearing surfaces of joint replacements for wear resistance while lengthening hardness and fracture resistance. Joint replacement is a godsend for people who otherwise would be in continuing agony and transfixed due to early joint malfunction. Nano technology deals with manipulating matter on a molecular scale and nano technology is both handy and controversial. On the matter of molecular self assembly, there are those who advocate doomsday eventualities spawned by self reproducing molecular machines. Be that as it may. Nano technology is a developing science that will have far reaching ramifications. Nano technology coatings are extremely inventive and handy in modifying the performance and properties of existing materials. As an example, the addition of certain nano particles can bolster the mechanical properties of polymers. This ends in a more flexible or stiff material that may be an alternative to some light weight metals like aluminium, which needs huge power consumption to extract from sea water. Perhaps the most apparent application of nano coatings is the diverse products released for cleaning and the manipulation of surfaces to reject contamination. One of the first nano products released denied water on vehicle windscreens. It became highly favored and eventually was added to optional coatings available at vehicle washes to treat the whole vehicle. Masonry buildings are subject to contamination and erosion from air borne contaminants. A coating composed of nano particles will effectively seal, reject water and contaminant particles. This ends in a lot less upkeep on the building and extends the life of masonry structures. It will be interesting to experience the enlargement of nano technologies and coatings, So far we have only scratched the outer surface of possible uses, some of the developing technology could be beyond the remit of imagination.