What is it Enamel Coating for Storage Tanks?
Enamel is more commonly known as a protective or decorative coating on metal, ceramic and glassware. It is produced by smelting a mixture of inorganic materials at high temperatures.
The use and presence of enamel date back to around the 13th century BC when six gold rings decorated with vitreous enamel-colored layers were discovered in a Mycenaean tomb in Cyprus. Since then, enamel was slowly adapted by many older civilizations, from ancient Egyptians to the Greeks, the Roman Empire and even parts of the Middle East, in which it was used to decorate jewelry and religious artifacts.
Various techniques in using enamel then started developing, including what was believed as the first enameling of iron in Germany in the 18th Century. This led to the production of enameled cast iron cooking vessels and sheet iron. From this, the Industrial Revolution paved the way to drive enamel application forward into industrial vitreous enameling, which is present in many home and industrial applications today.
Types of Enamel
There are two types of enamel, namely painted enamel and vitreous or porcelain enamel.
Painted enamel, at its simplest form, is a type of solvent-based paint that is typically sprayed onto objects to achieve a hard and glass-like shell. It is mostly used for touch-ups and is a convenient way to apply protective coating on things such as bathtubs.
On the other hand, porcelain enamel is a thin layer of glass fused on a metal object at high temperatures. Apart from beautifying the object, enamel helps to strengthen the surface of the object, while helping to minimize scratches and rust.
This makes it ideal for many modern applications, both at the workplace and at home. That explains why our bathtubs, sinks, ovens, stoves and some storage water heaters at home all have a glassy finish.
Enamel Production process
When it comes to storage water heaters, enamel is sometimes used as a protective barrier in the inner tanks. How then is porcelain enamel created? First the enamel is created by combining selected minerals and metal oxides at a high temperature. Once this is cooled, it will form a glass-like surface which will be then ground into fine pieces known as frits. The frits will then be applied to the metal surface or object that you want to coat and will be heated at a very high temperature ranging from 600 °C to 860°C in order to melt. This process is also known as fritting, which will help the frits create a strong and inseparable coating with the metal surface.
Enamel in solar water heaters
We have seen how durable and high-quality enamel coating can be as it can withstand high temperatures and at the same time offer excellent protection. This is why lato’s storage water heater inner tanks are coated with enamel. Here are more reasons why you should choose storage water heaters that come with enamel coat in their inner tanks:
- Able to resist high temperature
- High resistant to rust
- Lower chance of inner tank leakage
Enamel coated storage solar water heaters
As a manufacturer and distributor of water heating solutions worldwide, Lato’s storage tanks are equipped with enamel coating to provide the quality and durable water heating products to homes and businesses all over the world.
lato Commercial Solar Water Heaters combine our solar collectors with a centralized heat store to extract the sun’s free energy and hold it ready for use. Highly efficient heat exchangers transfer the stored energy to the water supply to meet your hot water requirements on demand. A range of booster options ensures a continuous hot water supply regardless of the demand or weather.
This combination of storage and controlled heat transfer allows the system to quickly deliver large volumes of water at a consistent supply temperature. Each system is specifically customized to best meet your requirements and existing infrastructure. The flexibility of the Hellios Series ensures it can be connected as a solar pre-heater to immediately reduce the running costs of almost any existing hot water plant with minimal disruption to the installation. Alternatively, the system can be tailored for new building projects or as a complete replacement for old, inefficient water heaters.