Stringent Testing & Approvals

Macropoxy® 646 N

Macropoxy 646 N is a two-component, fast-drying polyamide epoxy designed to protect steel and concrete in demanding environments. Self-priming and versatile, it serves as both an intermediate and topcoat in multi-layer systems. Recommended for use at nuclear power plants, fabrication shops, and DOE nuclear fuel and nuclear weapons facilities.

For use over properly prepared steel and concrete surfaces in nuclear and industrial environments.

• Fast-drying formulation for efficient applicationSelf-priming; suitable as intermediate and topcoat 
• Meets specific design requirements for nuclear safety-related qualification*
• Quality manufactured to 10 CFR 50 Appendix B and ANSI/ASME NQA-1 standards
• Ideal for structural steel, containment areas, and facility infrastructure

*DBA Qualification for LOCA is NRC license-specific to the facility.

Zinc Clad® II N

Zinc Clad II N is a solvent-based, two-component inorganic ethyl silicate coating with 85% zinc content in the dry film. Engineered for nuclear-grade performance, this zinc-rich primer delivers exceptional corrosion resistance and rapid curing properties, even in low-temperature environments. Recommended for use at nuclear power plants, fabrication shops, and DOE nuclear fuel and nuclear weapons facilities.

For use over properly prepared steel surfaces in nuclear and high-spec environments.

• Self-healing zinc-rich formulation for continuous protection
• Rapid cure: 15 minutes to touch, cures down to 0°F (-7°C)
• Meets SSPC-Paint 20 Type I-C, Inorganic, Level 1
• Compliant with AASHTO M-300 and Class B slip coefficient and creep resistance, (.52)
• Qualified for nuclear safety-related applications per 10 CFR 50 Appendix B and ANSI/ASME NQA-1
• Ideal for structural steel, piping, valves, liners, and both maintenance and new construction

Heat-Flex® CUI-Mitigation

The Heat-Flex® CUI-Mitigation Portfolio is engineered to combat corrosion under insulation (CUI) in the most demanding thermal environments. Designed for long-term protection of process piping, valves and vessels, this portfolio is well-suited for use across the BOP in nuclear facilities.

For use in high-temperature, insulated service environments across nuclear and industrial infrastructure.

• Protects against heat, corrosion, UV erosion, and thermal shock
• Performs across a wide range of service temperatures
• Includes advanced solvent-free and MIO-enhanced epoxy options
• Extends asset life in insulated systems and plant infrastructure
• Withstands damage during transport, handling, and installation
• Supports nuclear safety standards and long-term reliability