April 16, 2020 on 8:47 pm

With over half a century of expertise in the development of anti-seize and lubricating compounds, Bostik Never-Seez products have emerged as an industrial front-runner in innovative protection against seizure, corrosion, pitting, and galling of metal parts. Seizure, which can be caused by a variety of factors including thread distortion, incorrect tolerances in press, tapered and shrink fits, galvanic action, and carbon deposits, makes disassembly of machinery, piping and metal parts extremely difficult. Traditionally, anti-seize compounds are formulated with a lubricant and metal or solid content that has a low coefficient of friction and are brushed on bolts, flanges and other components to eliminate the corrosion that causes a fastener to seize over time. Once the lubricant dissipates, the metallic content is left behind to facilitate removal of the fastener.

Similarly, Never-Seez contains very fine metallic particles in a special hydrocarbon carrier which seals and protects metals parts under the most extreme conditions of heat, pressure and contamination. The fine, protective film of Never-Seez cannot be washed out, burned off, or completely removed by abrasion. When applied properly, Never-Seez allows for nondestructive disassembly and bolt reuse, reducing replacement costs and maintenance down-time.

The question many users have in regard to choosing the correct anti-seize product is, “How do I know which one is the right one for me?” Selecting the correct anti-seize product begins by asking yourself these fundamental questions:

  • What application am I using this for?
  • What type of environment will this be used in?
  • Is there a temperature requirement to withstand?
  • Are there acids, alkalis, or chemicals that may come into contact with the anti-seize?

Understanding and knowing how to apply this information to your product selection will go a long way in helping you choose the appropriate anti-seize for your application.

To help you get started, we have provided a brief overview of some of these products, recommended applications and special features:

Regular Grade Never-Seez

This copper-based anti-seize is also formulated with graphite and aluminum to protect parts in temperatures ranging from -297 °F -1800°F.

  • Resists alkaline solutions, most chemical and acid vapors, road salt, steam and salt water
  • Resists galvanic action between dissimilar metals
  • Protects against carbon fusion
  • Recommended for use on pipe fittings, assemblies and gaskets.

Pure Nickel Special Never-Seez

This high temperature, extreme pressure anti-seize contains flake particles of pure nickel and graphite. Recommended for use when applications prohibit the presence of copper.

  • Protects in temperatures up to 2400°F
  • Excellent heat dispersing qualities
  • Resists galvanic action between dissimilar metals
  • Recommended for use on fasteners in exhaust manifolds and boilers, or stainless steel pipe fittings

High Temperature Stainless Never-Seez

Comprised of stainless steel, graphite and aluminum-based anti-seize and lubricating compounds. Specially designed for applications that cannot use nickel-based products.

  • Protects and prevents seizure in temperatures up to 2200°F
  • Resists alkaline solutions, chemical and acid vapors, steam and iodized water
  • Resists galvanic action between dissimilar metals
  • Recommended for use on fasteners in steel mills and power plants, reactor bolts and turbine bolts, and stainless steel pipe fittings, flanges and unions

Black Moly Never-Seez

Contains a high concentration of molybdenum disulfide for extreme pressure applications.

  • Withstands pressures up to 500,00 PSI and temperatures up to 750°F
  • Excellent for use under heavy loads and slow speeds which can result in boundary lubrication failure
  • Recommended for engine assembly and break-in, press fit assemblies, machine tool parts, highly loaded bearings, and adjusting screws

Mariner’s Choice Never-Seez

Specially formulated for protection of parts above and below the waterline, Mariner’s Choice is formulated with graphite, calcium fluoride, zinc oxide and aluminum.

  • Withstands temperatures up to 2450°F
  • Excellent resistance to water washout
  • Compatible with soft metals
  • Recommended for use on screw shafts, water pump gaskets and flanges, bilge piping, and prop shaft bearing houses

White Food Grade with PTFE Never-Seez

Formulated with polytetrafluoroethylene (PTFE), White Food Grade Never-Seez meets FDA requirements for applications in which accidental food contact is possible.

  • Withstands temperatures up to 475°F
  • Resists water and chemical washout
  • Provides a seal against entrance of liquids in bearings
  • Recommended for chain and conveyor shafts, kettle valves, blender shafts

Pipe Compound with PTFE Never-Seez

Contains a special, high-quality grease with Teflon, mica, and zinc oxide. Formulated to provide maximum thread lubrication in a wide range of pipe threads and fittings.

  • Withstands temperatures up to 525°F
  • Non-toxic and non-hazardous
  • Suitable for contact with water, natural and propane gas, air, steam, and hydraulic oils
  • Recommended for use on black iron, galvanized stainless steel, and high pressure steam pipes in contact with cast iron, malleable, brass, stainless steel or galvanized fittings

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