Cooling Tower Durability Enhancement at DFPCL’s Dahej Petrochemicals Facility
Deepak Fertilisers and Petrochemicals Corporation Limited is one of India’s leading manufacturers of industrial chemicals and fertilisers, operating large-scale production facilities across the country. At their Dahej facility, DFPCL undertook protective coating and durability enhancement works for the cooling tower structure. The project was executed by Ashray Infrastructure, with Sunanda Global supplying and applying the epoxy coating system selected for the protection works.
The cooling tower structure required a high-performance coating system capable of delivering long-term protection against moisture, chemical exposure, and the harsh operating conditions characteristic of an active petrochemicals facility.

The Challenge
A cooling tower structure at an active petrochemicals facility operates under continuous and compounding stress. The protection specification at DFPCL Dahej required a coating system that could address:
- Continuous exposure to moisture and humid operating conditions
- Requirement for durable protection against chemical splashes and industrial contaminants
- Need for a long-lasting coating system with excellent adhesion and corrosion resistance
- Maintaining operational reliability of the cooling tower infrastructure
The Application
Sunanda Global supplied and applied a two-product epoxy coating system for the protection of the cooling tower structure.
SUNEPOXY WB was applied as a moisture-tolerant primer and coating, providing excellent adhesion and resistance to chemicals and moisture.
SUNEPOXY HB was applied as the high-build finish coat, a solvent-free epoxy coating providing superior chemical resistance, waterproofing, abrasion resistance, and long-term protection for concrete surfaces.

The Result
Key benefits delivered:
- Enhanced protection against moisture ingress and chemical attack
- Durable, seamless, and easy-to-maintain coating system
- Excellent adhesion to concrete and steel substrates
- Improved corrosion resistance and extended service life of the structure
- Low-VOC, hygienic, and environmentally responsible coating solution
- Successful and timely product supply and technical support
Project Outcomes
The epoxy coating system was successfully applied across the cooling tower structure at DFPCL’s Dahej facility, delivering durable protection against moisture, chemical exposure, and industrial contaminants in line with the project’s performance requirements.
“The Sunanda team was technically sound and addressed all our technical queries quickly and effectively. The supply of their products was successfully completed in a timely manner. The products and systems have worked well and we are pleased with the results. We had a good experience with the product and the services provided and have no hesitation in recommending Sunanda Global products and services.”
What the structure faces daily, the coating must protect indefinitely.
