WHY EPOXY COATED TMT BARS ARE MORE DURABLE COMPARE TO REGULAR TMT BARS

Superior Corrosion Resistance: Corrosion is the greatest enemy of steel reinforcements in concrete buildings. The regular TMT bars can be affected by rust in case moisture, air and chlorides are involved, usually along the coasts or in a high humidity environment. As soon as corrosion is developed, it makes the steel materials weak, makes cracks in the concrete and even in the whole structure. The TMT bars, however, have an epoxy coating over the exterior resin that serves to separate the steel and the outside environmental factors that could cause corrosion. This will avoid immediate contact of moisture and salts with the steels thereby making the steels highly resistant to corrosion and so longer life.

Better Performance in Harsh Environments: Aggressive environmental conditions can be encountered in marine areas, industrial zones, sewage treatment plants or other high-humidity climates and here only a special material is adequate. Standard TMT bars, even of superior grades, might fail to cope with the long-term effects of exposure to corrosives. Epoxy coated bars are made to have these challenges in mind. They are also chlorides, sulfates, and industrial chemicals resistant, which means they are fitting in bridges and flyovers, ports, chemical factories, and in buildings where water is required to be retained.

Maintains Structural Strength Over Time: As normal TMT bars rust, they swell and build up pressure on the internal concrete. This causes cracking, spalling and deteriorating of the reinforced structure. Although the TMT bar might be strong initially, its performance would be reduced drastically as soon as the corrosion process starts. The TMT bars of epoxy coating retain their original mechanical manifestations (yield strength, ductility and tensile strength) over an extended time. This implies that the structure can last many decades, and it has little maintenance and repair expenses.

Enhanced Bonding and Integrity: Modern epoxy coatings are engineered to maintain a good bond with concrete, similar to or even better than uncoated bars. The ribbed surface of TMT bars remains effective even after the coating, ensuring excellent grip and load transfer between steel and concrete. This ensures that there’s no compromise in the bar’s ability to function effectively within the concrete matrix.

Resistance to Micro-Cracks and Abrasion: Over time, regular TMT bars may develop micro-cracks or surface degradation due to handling, transportation, or environmental exposure. These small imperfections can become entry points for moisture and chemicals, accelerating the corrosion process. Epoxy-coated TMT bars are more resistant to surface wear and micro-cracking. The tough epoxy layer absorbs minor impacts and abrasions, preserving the steel beneath.

Cost-Effective in the Long Run: Although epoxy-coated TMT bars have a higher initial cost compared to regular TMT bars, they offer significant long-term savings. Reduced maintenance, longer structural lifespan, and fewer repair cycles contribute to a lower total cost of ownership over the building’s life. For projects where durability and safety are paramount, such as public infrastructure or high-value commercial properties, the investment in epoxy-coated bars pays off substantially.