Applications

LOCTITE® 271™ – Acrylic, Anaerobic Cure- Threadlocking

  • Item Name: LOCTITE® 271™
  • Manufacturer: Henkel
  • Technologies: Acrylic, Anaerobic Cure, Dimethacrylate Ester
  • Color: Red
  • Cure Type: Anaerobic / Secondary Cure with Activator
  • Package Size: Contact to Avantek for details
  • Shelf Life: Contact to Avantek for details
  1. Product Overview
    LOCTITE® 271™ is a high-strength anaerobic threadlocker formulated for permanent locking and sealing of threaded fasteners. It cures in the absence of air between closely fitting metal surfaces, protecting against loosening from shock and vibration. Suitable for large bolts and studs up to M25
  2.  Applications
  • Permanent threadlocking

  • Locking/sealing of large bolts, studs, and threaded fasteners

  • Ideal for applications exposed to vibration

  • Certified for use in gasoline, oil, gas, and brake fluid environments

3. Typical Properties

Property Value / Range
Appearance (Uncured) Red
Specific Gravity @ 25°C 1.1
Viscosity (Brookfield RVT, 25°C) 400–600 mPa·s (Spindle 1, 10 rpm)
Flash Point See SDS

Cured Performance – After 24 Hours at 22°C

Property Value/Range
Breakaway Torque (Steel, 3/8 x 16 bolts) 16.9 to 34 N·m (150–300 lb.in.)
Prevail Torque (Steel, 3/8 x 16 bolts) 22.6 to 40 N·m (200–355 lb.in.)
Breakaway Torque (Cadmium/Zinc bolts) 4.5 to 14.1 N·m (40–125 lb.in.)
Torque (M10 Steel Bolts) 17 to 40 N·m (150–350 lb.in.)

Environmental Resistance

  • Maintains strength up to 150°C

  • Resists automotive fluids, gasoline, ethanol, acetone, and brake fluid

  • Retains 85–100% of initial strength after 1,000 hours in various fluids

  • Excellent hot strength and heat aging resistance

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