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ET-TMT EPOXY COATED BARS, A REVOLUTIONARY
STEP FOR SUSTAINABLE DEVELOPMENT

special mandrel to protect the coating from damage.
Environment-friendly
Epoxy powder coated bar is a sustainable solution that is environment
friendly.
Long lasting
Studies have shown that structures built with epoxy last longer than
similar structures made with black steel.
Electrotherm (India) Ltd. is a well-diversified conglomerate having a Cost-effective
strong presence in the field of engineering, and projects serving steel, Epoxy coating is very cost-effective as it adds very little to the overall cost
foundry & heat treatment industries since 1983. Over the years, it has of the structure and lifecycle.
Superior Quality
forayed into manufacturing of Induction Melting Furnaces, Continuous
As the technique is factory based, it enables uniform thickness of coating
Casting Machines, Steel, Transformers, Ductile Iron Pipes, Electric
which adds to the quality of production.
Vehicles, and Renewable Energy and Transmission Line Towers.
Excellent Bonding
Electrotherm (India) Ltd. setup its 0.6 million TPA-integrated steel plant in The bonding of coating with steel TMT bars is high as it has excellent
the year 2005 in Kutch, Gujarat. The company grew rapidly over the next adhesive property.
Offers Barrier Protection
few years and became one of the largest producers of steel in Gujarat.
The Fusion Bonded Epoxy coating acts as an insulator for
Electrotherm (India) Ltd. launched TMT Bars in 2006 and in a short span
electrochemical cells and offers barrier protection to steel which prevents
of 15 years, ET TMT Bars has become the most preferred, No. 1 brand of
entry of chloride ions through it.
TMT bars in Gujarat. Today, Electrotherm (India) Ltd. is Western India's
first fully-integrated manufacturing facility of epoxy coated TMT bars with Process of manufacturing Epoxy TMT Steel Bars:
unique offerings like ET TMT Epoxy Coated and ET TMT Cut & Bend
which are ready-to-use TMT bars made in an automated plant assuring Surface Preparation
efficiency, accuracy and uniformity, leading to a quicker construction TMT bar is cleaned for surface contamination such as grease and oil by
process. The company offers wide-ranging products including Superior solvent cleaning. Shot blast cleaning is the most commonly used method
Quality Bars, Refined Steel, CRS Bars, Cut & Bend Bars and Epoxy for preparation of steel surfaces. This effectively removes rust, scales,
Coated Bars. slats etc. from the surface and produces an industrial grade of a clean
and rough surface finish.
What are Epoxy Coated Bars? Pre-Heating
Heating can be achieved by using several methods, but the most efficient
Epoxy coated TMT bar, one of the best TMT bars in India, are a highly
method is induction heating. TMT bars are passed through a high
corrosion resistant variant of steel bars which are protected by Fusion
frequency alternating current along with a magnetic field, which heats
Bonded Epoxy (FBE) coating. Fusion Bonded Epoxy coating, commonly
according to the required FBE coating application temperature. Typical
referred to as FBE coating is widely used to protect concrete TMT bars,
application temperature for a stand-alone FBE is 225°C to 245°C.
steel pipes, piping connections etc. used in construction. FBE coatings Epoxy Powder Applica on
are in the form of dry powder at normal atmospheric temperature. The The FBE powder is placed on a fluidisa on bed. The heated TMT bar is passed
powder is applied electrostatically to the surface of cleaned hot steel bars through the coa ng booth with number of electrosta c epoxy spray guns and
and cured to form a protective film after undergoing various chemical the dry powder is sprayed (cloud forma on) on the hot TMT bar. Here, the
processes. The epoxy coated bars last longer due to the protective film powder par cles are suspended in a stream of air which is electrically charged
and thereby contribute to the quality of construction. This helps in due to which epoxy powder par cles are a racted to the grounded TMT bar. As
increasing the life span of normal TMT likewise your structure up to 10x soon as the charged epoxy powder par cles hit the hot TMT bar, they melt and
Times. flow into the anchor profile. The heat also ini ates a chemical reac on which
causes the epoxy powder molecules to form cross linked polymers which give
Advantages of Epoxy Coated bars:
the coa ng its beneficial proper es.
Economical Curing and Cooling
The superior corrosion protection can extend the life of the epoxy coated Epoxy coated TMT bars are given a thermal treatment by keeping them at 225°C
TMT bars, resulting in significantly lower lifecycle costs over time. for a dura on recommended by epoxy powder manufacturer resul ng in fully
Requires Less Maintenance cured coa ng. The coated bars are passed through a cooling tunnel a er curing,
It needs little maintenance that leads to substantial savings in labour where water is sprayed on the bars to cool them. The bars are then transferred
costs. It is flexible to allow straight bars to be bent during fabrication on a to the final inspec on rack for tes ng and inspec on.

44 / CONSTRUCTION VISION / February-March 2023