NEVER-SEEZ^® Anti-Seize and Lubricating Compounds

Q: What is the difference between NEVER-SEEZ® anti-seize and grease?

A: NEVER-SEEZ^® anti-seize is a heavy-duty compound packed with solid metallic and graphite flakes designed to help prevent metal parts from fusing under extreme heat and pressure. Standard lubricating grease is a smooth fluid designed to continually reduce friction in fast-moving, low-pressure mechanical parts like bearings.

Q: When should NEVER-SEEZ® anti-seize be used?

A: NEVER-SEEZ^® anti-seize compounds are commonly applied to threaded fasteners and metal assemblies to prevent galling, corrosion and seizure. They are beneficial in high-temperature, corrosive and high-load environments where future disassembly may be required.

Q: When should NEVER-SEEZ^® products not be used?

A: NEVER-SEEZ^® products are generally not recommended for:

• High-speed bearing applications
• Torque-critical joints without torque adjustment
• Oxygen systems unless specifically approved

Q: Does NEVER-SEEZ^® anti-seize affect torque values?

A: Yes; anti-seize compounds can reduce friction between mating surfaces. When applied correctly, torque generally should be reduced by approximately 15-30% compared with dry assembly unless otherwise specified by the equipment manufacturer.*

_{*Based on Bostik's internal testing}

Q: How should NEVER-SEEZ^® products be applied?

A: To apply, we recommend:

• Apply a thin, consistent coating to threads and under the bolt head or nut face
• Ensure complete coverage at thread roots and circumferences
• Avoid excessive application beyond the engaged thread area

Proper application helps achieve consistent tightening while minimizing the risk of thread damage.

You can watch this video to learn how to apply our NEVER-SEEZ^® Regular, High Temperature Stainless Nuclear and Pure Nickel Grades.

Q: How can I prevent over-torquing?

A: To prevent over‑torquing, applied torque should be reduced by approximately 15–30%* compared to dry assembly, unless otherwise specified by the equipment manufacturer.

Q: How do I clean up NEVER-SEEZ^® compounds?

A: Most material can be removed using a cloth or paper towel.

For residual grease or oil, Bostik recommends:

• Mineral spirits
• Odorless mineral spirits (OMS)

These solvents are generally more compatible with the grease carrier than acetone or methyl ethyl ketone (MEK).

Q: Which NEVER-SEEZ^® anti-seize compound should I choose for high temperatures?

A: Our recommended anti-seize compounds for high temperatures are:

• Pure Nickel Special: Protects up to 2,400°F for stainless steel, titanium and extreme chemical or acid environments.
• High Temperature Stainless: Protects up to 2,200°F and uses a blend of stainless steel, graphite, and aluminum for jobs avoiding nickel.
• Regular Grade (Copper/Aluminum/Graphite): Protects up to 1,800°F and is good for general high-heat industrial and exhaust uses

Q: How do I find the date of manufacture on my NEVER-SEEZ^® product?

A: The seven-digit lot number and six-digit date code are printed on the bottom of the container. Bostik recognizes the item packaged date as Date of Manufacture, i.e., beginning of shelf life.

• Date codes use a Year-Day-Month format.
• Example: 230210 = February 10, 2023

_{*Based on Bostik’s internal testing}