Customers have asked why Uwell doesn’t makes ceramic coils since the ceramic coil has a longer life compared with the Crown 2 coil and some ceramic coils even have better taste.
By UWELL | November 30th, 2017
The article followed contains some researches and analysis of how ceramic coils affect vapers’ health and it may help to answer the question.
Uwell realizes the short life of the Crown 2 coil and we are developing coils to taste better and last longer. The latest version has increased life time and is now on the market. The good news is that there is positive response.
In this article, we will present three ceramic coils from different brands. We will objectively investigate them through the use of a microscope. After comparing their microstructure and powder size, we can see it is harmful to health. Using a ceramic coil can cause trachea and lung damage. Ceramic powder can cause cancer if not removed from the lung.
Making the ceramic material
The ceramic coil is made from inorganic porous ceramic material. There are tiny pores inside the ceramic material that cannot be seen. Pores play an important role in wicking. In order to produce a porous ceramic material, raw materials such as silica powders and pore-forming materials like starch or other organic polymers are needed. Then they are mixed and put into a mold with high pressure. Samples are obtained with a fixed shape. The samples are put into a furnace and set to a high temperature. Pores are formed while the pore-forming agent combusts and escapes. This kind of pore plays an important role by introducing e-liquid into your vape. However, to make enough pores, the temperature to stick the materials together is lower which causes low tensile and compressive strength. The powders fall off or crack when the ceramic coil is touched or shaken. All the powders can be introduced into the lung by air which is dangerous (the speed of air can reach 223mph when we are vaping).
Ceramic coils will absorb more e-liquid. E-liquid is vaporized and evaporated when the coil is working. High pressure from the vapor will expand and damage the structure of the porous ceramic material. Loose powders will fall off and go into the lung.
Silicosis is a form of occupational lung disease caused by inhalation of crystalline silica dust. Symptoms are inflammation and scarring in the form of nodular lesions in the upper lobes of the lungs. This is a type of pneumoconiosis. Silicosis can be complicated by the development of severe scarring, where small nodules gradually merge together, reaching a size of 1cm or greater. Progressive massive fibrosis is associated with more severe symptoms and respiratory impairment. Silicosis can also be complicated by other lung diseases such tuberculosis, non-tuberculous mycobacterial infection, and fungal infection, certain autoimmune diseases, and lung cancer (“Silicosis.” Wikipedia. Wikimedia Foundation, n.d. Web. 29 Sept. 2016.) (https://en.wikipedia.org/wiki/Silicosis).
In conclusion, ceramic coils are not healthy. First, a ceramic coil is made from silica similar to glass. Second, ceramic powders or glasslike pieces easily fall off. Finally, silica powders may cause death.
Uwell is working hard to develop a better ceramic coil. However, it is impossible to continue with current technology. Therefore, Uwell will put making a ceramic coil on hold.
Uwell wants to tell customers the truth. Uwell will never produce a product that causes death. Would you buy a coil that lasts longer at the cost of your life?