In high-heat operating environments—such as internal combustion engines, exhaust manifolds, and industrial ovens—even the most robust mechanical fasteners can loosen due to thermal cycling and vibration. Standard threadlockers often degrade or lose bond strength above 150°C, leading to leaks, misalignment, or catastrophic failure.

B8X 272 is a high-strength, high-temperature anaerobic threadlocker specifically formulated for permanent locking of threaded assemblies exposed to prolonged elevated temperatures. It cures to form a tough thermoset polymer that maintains structural integrity up to 232°C (450°F)—making it ideal for mission-critical applications where reliability is non-negotiable.

Key Performance Features

  • Continuous service temperature: –55°C to +232°C (–67°F to +450°F)
  • High shear strength: >20 N/mm² on steel substrates
  • Permanent bond: Designed for non-disassembly or disassembly only with localized heating (>250°C)
  • Excellent chemical resistance: Resists oils, coolants, and mild solvents after full cure
  • Low volatility formula: Minimizes outgassing in sealed systems

Real-World Applications

? Automotive & Motorsports

  • Cylinder head studs
  • Exhaust manifold bolts
  • Turbocharger housings
  • Engine block main bearing caps

B8X 272 prevents thermal relaxation and micro-movement in high-RPM or high-load engines, ensuring consistent clamping force over thousands of thermal cycles.

⚙️ Power Generation & Turbines

  • Generator coupling bolts
  • Steam turbine casing fasteners
  • Compressor flange connections

In combined-cycle plants and backup generators, B8X 272 eliminates maintenance-induced downtime by securing joints that operate near red-line temperatures.

?️ Oil & Gas / Petrochemical

  • Downhole tool assemblies
  • Valve bonnet bolts in refining units
  • Heat exchanger end caps

Its stability under thermal stress and resistance to hydrocarbon exposure make it suitable for upstream and midstream operations.

Application Guidelines

  1. Clean threads thoroughly with solvent; dry before application.
  2. Apply a continuous bead to male threads or fill female threads partially.
  3. Assemble immediately and torque to specification.
  4. Full cure occurs in 24 hours at room temperature; accelerated cure possible with mild heat (60–80°C).
  5. Disassembly requires heating the joint to >250°C followed by mechanical force.

Why Choose B8X 272?

Backed by rigorous in-house testing and ISO-certified manufacturing, B8X 272 offers predictable performance in the world’s most thermally demanding mechanical systems. It reduces warranty claims, unplanned shutdowns, and safety risks—while supporting design simplification by replacing lock washers, staking, or welding.

Ensure your high-heat assemblies stay locked—permanently.

Contact B8X for technical support, compatibility testing, or bulk dispensing solutions tailored to your production line.