Bostik Pure Nickel Special Never-Seez NSN-165: High-Temperature Anti-Seize Lubricant

Bostik Never-Seez Pure Nickel Special (NSN-165) is a superior, copper-free anti-seize and extreme pressure lubricant rated for use in temperatures from -297°F to 2400°F (-183°C to 1316°C). Formulated with flake particles of pure nickel and graphite in a special grease carrier, NSN-165 is engineered to prevent seizure, galling, and corrosion in the most demanding industrial environments — including applications where copper-based compounds are prohibited.

Key Benefits of Bostik Never-Seez NSN-165

• Prevents seizure at high temperatures, protecting parts up to 2400°F (1316°C)
• Prevents galling on steel-to-stainless steel, titanium, magnesium, and other hard metal assemblies
• Resists galvanic action between dissimilar metals, extending service life
• Enables fast disassembly even after prolonged high-temperature exposure
• Resists alkaline solutions, acid vapors, road salt, steam, salt water, and ionized water
• Excellent heat dispersing qualities to reduce thermal stress at connection points
• Minimizes corrosion, ensuring long-term protection for critical fasteners and fittings
• Copper-free formula — safe for applications where copper contamination is a concern

Pure Nickel Special Never Seez is engineered for demanding industrial applications where standard anti-seize compounds are insufficient. Typical applications include:

• Fittings and fasteners exposed to high temperatures in steel mills, power plants, and nuclear plants
• Stainless steel pipe fittings, flanges, and pump fittings
• Fasteners in exhaust manifolds and boilers
• Steam generators
• Assembly of dissimilar metals requiring protection from galvanic corrosion

NSN-165 is particularly well suited to environments requiring a copper-free compound — for example, in nuclear or chemical processing facilities where copper contamination could compromise system integrity.

*Certificate Of Analysis Included With Shipment

Technical Specifications

Industry Approvals and Compliance

Bostik Never-Seez Pure Nickel Special NSN-165 meets the following industry specifications:

• GE Aviation A50TF198 S2 Specification
• GE EMPIS D6Y28C1 Specification

Never-Seez Pure Nickel Special SDS 

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