Engineered Coating Systems for the World’s Most Critical Infrastructure

In the nuclear power sector, safety, durability, and reliability are more than operational goals — they are absolute imperatives. Every component of a nuclear facility must withstand extreme temperatures, radiation exposure, humidity, and chemical corrosion, while maintaining structural integrity and fire safety at all times.

At Junhui Technology, we develop fire protection and industrial coating systems specifically engineered to meet the unique demands of nuclear power plants. From containment structures and reactor buildings to turbines, pipelines, and auxiliary facilities, our coatings provide multilayer protection that enhances safety, extends operational life, and ensures compliance with the world’s most rigorous industry standards.

The Role of Coatings in Nuclear Facility Safety

Nuclear power plants operate under complex conditions — high heat, moisture, vibration, and exposure to radiation and corrosive substances. Each surface, from steel frameworks to concrete containment walls, is vulnerable to degradation over time.

Junhui Technology’s coating systems are designed to:

• Prevent corrosion caused by condensation, humidity, and decontamination chemicals.

• Enhance fire resistance of structural steel and compartment barriers.

• Resist radiation and thermal degradation for long-term performance.

• Ensure surface decontamination and easy maintenance in controlled zones.

By integrating fireproofing, corrosion protection, and chemical resistance in one system, Junhui coatings deliver holistic safety and performance solutions for nuclear facilities worldwide.

Fire Protection Coatings: Passive Safety That Saves Lives

Fire poses one of the greatest risks in any industrial environment, but in nuclear facilities, its consequences are catastrophic. Electrical faults, turbine fires, or chemical leaks can escalate rapidly if not contained.

Junhui Technology’s intumescent fire protection coatings are engineered to preserve the integrity of critical structures and components during high-temperature exposure.

How It Works

When exposed to heat, the coating expands into a thick, insulating char layer — forming a thermal barrier that slows heat transfer to the substrate. This prevents the underlying steel or concrete from reaching its failure point, maintaining load-bearing capacity and structural stability for up to several hours.

Applications in Nuclear Facilities

• Reactor building steel frameworks to prevent structural collapse under fire.

• Cable trays and electrical rooms for containment of electrical fires.

• Turbine halls and generator enclosures where mechanical friction may spark ignition.

• Fuel handling and waste storage areas requiring certified passive fire protection.

All Junhui fireproof systems comply with NFPA 251, ASTM E119, UL 1709, and ISO 834 test standards, ensuring reliability under both cellulosic and hydrocarbon fire conditions.

Industrial Protective Coatings: Defending Against Corrosion and Radiation

Beyond fire, the nuclear industry’s biggest challenge lies in corrosion and environmental degradation. The constant presence of steam, cooling water, and radioactive materials accelerates deterioration in metallic and concrete surfaces.

Junhui Technology’s industrial protective coatings are built on cutting-edge polymer chemistry, combining epoxy, polyurethane, and inorganic zinc technologies to ensure unmatched resilience.

1. Epoxy Barrier Coatings

Epoxy coatings from Junhui Technology create a dense, impermeable film that prevents water, oxygen, and chemicals from reaching the substrate. They are ideal for containment areas, pipelines, turbine housings, and cooling systems.

Our high-solids, solvent-free epoxy systems also minimize VOC emissions, ensuring safety for both plant environments and personnel.

2. Polyurethane Topcoats

For exposed external structures, Junhui polyurethane coatings offer exceptional UV, weather, and abrasion resistance. These topcoats maintain gloss, color, and protective value for years, even under radiation and outdoor stress.

3. Zinc-Rich Primers

Steel reinforcement and external frameworks benefit from our zinc-rich primers, which deliver cathodic protection — the zinc corrodes sacrificially, protecting the underlying steel. This system is especially effective for cooling tower structures and pipelines exposed to water cycles.

4. Radiation-Resistant Coatings

Junhui’s R&D team has developed specialized radiation-resistant coatings that maintain mechanical strength, adhesion, and chemical integrity even under prolonged gamma radiation exposure. These are critical for internal containment areas and shielding structures.

Technical Performance Highlights

Each Junhui coating system undergoes rigorous testing to ensure performance in nuclear-grade environments.

Junhui’s coatings aren’t just compliant — they are performance-proven in the most demanding nuclear environments.

Safety, Standards, and Certification

Junhui Technology ensures all products align with international nuclear and industrial safety standards, including:

• IAEA Safety Guidelines (SSR-2/1)

• IEEE 634 & 383 (Nuclear Cable Fire Protection)

• ISO 12944 (Corrosion Protection of Steel Structures)

• NFPA 805 (Performance-Based Fire Protection for Nuclear Plants)

• NACE MR0175 (Materials in Corrosive Environments)

Every coating batch is quality-controlled under ISO 9001 and ISO 14001 standards, ensuring consistent performance and traceability.

Sustainability and Environmental Responsibility

Nuclear facilities are designed for long service lives — often exceeding 40 years. Junhui’s coatings support these sustainability goals by minimizing maintenance cycles and reducing environmental waste.

Our formulations are low-VOC, heavy-metal-free, and designed for minimal solvent release, contributing to cleaner air and safer workplaces. Longer service intervals also mean fewer recoating projects, saving energy, materials, and cost over the plant’s lifetime.

Applications Across the Nuclear Power Infrastructure

Junhui’s specialized coating systems are used throughout nuclear facilities, including:

• Reactor containment structures (fireproof and radiation-resistant coatings)

• Cooling towers and water treatment systems (anti-corrosive epoxy coatings)

• Steam turbine halls and condensers (high-temperature coatings)

• Electrical and cable rooms (intumescent fireproof coatings)

• Fuel storage and handling zones (chemical-resistant linings)

• Ventilation systems and ducting (heat and corrosion-resistant finishes)

Our team provides custom-engineered coating systems for both new construction and refurbishment projects, ensuring compatibility with each plant’s material and environmental profile.

Why Nuclear Operators Trust Junhui Technology

1. Industry-Specific Expertise: Decades of R&D experience in high-performance protective coatings.

2. Safety-Driven Innovation: Coatings designed to meet or exceed international nuclear safety standards.

3. Global Certification: Tested and approved under UL, ISO, and NFPA standards.

4. Technical Partnership: On-site inspection, application training, and coating performance monitoring.

5. Lifecycle Value: Reduced maintenance frequency, downtime, and cost of ownership.

At Junhui Technology, we don’t just sell coatings — we deliver safety, efficiency, and reliability for the world’s most critical power systems.

Conclusion: Protecting the Future of Energy

As the global demand for clean and safe energy grows, the reliability of nuclear infrastructure becomes more vital than ever. Junhui Technology’s fire protection and industrial coating systems ensure that these facilities remain secure, durable, and efficient across decades of operation.

Through technical excellence, innovation, and unwavering commitment to safety, Junhui continues to be a trusted partner to nuclear operators and engineering firms worldwide.

Junhui Technology — protecting the world’s most powerful energy sources with precision-engineered coatings built to last.