How can I prevent corrosion of fan bodies & fan blades in Mumbai weather?
Someone suggested we can apply coat of varnish but I fear heat generated due high speed rotation of fans can melt the varnish and subsequently it can fly staining the walls.
Ceiling – Corrosion of ceiling fan bodies & fan blades
ceiling-fan
Related Solutions
Inexpensive ceiling fans are often poorly balanced. Poor balance is most obvious on high speed and sometimes not evident at low speed. Many vendors sell "Ceiling Fan Balancing Kits" which consist of a temporary weight clip that can be moved around until the fan is balanced via trial and error, and then permanent weights that are glued or stuck in place. The weights need to be well adhered or they can fling off unexpectedly.
No, it will not be OK.
A fan blade system is meant to be balanced. Even when all of the original equipment blades are in place, minor imbalances can occur and need to be corrected with weights from a balance kit. Failure to have a balanced fan causes wobble. If the wobble is bad enough, it can damage the motor, loosen the fan in its mounting and even cause mounting failure.
The five existing blades are evenly spaced. You can get replacement blades, but they have to be the same number as the originals. If you mount on only three of the five brackets, two blades will be next to each other and one will be opposite. This is a very significant imbalance and could lead to catastrophe.
If there were a way to mount the blades evenly around the perimeter, it might work, but that would require a whole new and custom crafted bracket system.
SUPPLEMENT: The Questioner has added information, now indicating he intends to mount the blades evenly spaced. If that is achieved, balance should not be an issue. Care must be taken to ensure that the adapter used to mount is also balanced around the perimeter (an added bracket on only one side would still create imbalance).
Best Answer
The best thing to do is purchase the correct fan for the environment that it is going to be installed in. Fans that are made for the outdoor/wet/hot weather are going to cost more, but they are made for that type of environment, and they should come with a warranty.
As for adding a protective coating to an existing fan, the only thing that I can think of would be to powder coat it, but that is going to cost you. If it can even be done, the shop would have to disassemble everything, powder coat, reassemble, test (hope that the blades are balanced) and even then that does not mean that the interior motor/wiring will not go bad do to the weather conditions.
If it where me I would get a new fan for the environment.