Henkel LOCTITE-275 (50-ml-Btl)

Additional Product Information

Overview

LOCTITE 275 is a high-strength anaerobic threadlocker designed for permanent locking and sealing of threaded metal fasteners. Widely used across aviation maintenance, repair, and overhaul (MRO) environments, it prevents loosening, leakage, and vibration-related failures. AOG teams rely on this solution for secure, long-lasting fastening of critical assemblies where reliability and durability are essential.

Key Technical Specs for LOCTITE 275

• Type: Anaerobic acrylic threadlocker (dimethacrylate ester)
• Size/Volume: Available in multiple bottle sizes (consult supplier)
• Color: Green liquid (UV fluorescent for inspection)
• Viscosity/Consistency: Medium viscosity, 5,000–10,000 mPa·s (cP)
• Cure/Working Time: Fixture in minutes to hours depending on substrate; full cure approx. 24 hours at 22°C (72°F)
• Strength: High-strength permanent locking
• Compressive Shear Strength: ≥11 N/mm² (≥1,595 psi) after 24 hours
• Service Temperature: Maintains strength during heat exposure up to approx. 150°C (302°F)
• Typical Uses: Locking and sealing large bolts, studs (M25+), threaded assemblies
• Shelf Life: Refer to product label; store at 8–21°C (46–70°F)

Approvals & Specifications

• MIL-S-46163 performance testing
• MIL-R-46082 performance testing
• ISO 10964 torque testing
• ISO 10123 compressive shear testing
• Batch quality verification under Loctite Material Specification (LMS)

Typical Aircraft MRO / AOG Applications

• Securing engine and airframe fasteners
• Locking landing gear and structural bolts
• Preventing vibration loosening in avionics mounts
• Sealing threaded hydraulic and pneumatic fittings
• Heavy maintenance and overhaul fastening tasks

Compatibility & Safety Notes

• Best suited for metal substrates including steel, brass, and stainless steel
• Not recommended for plastics or thermoplastics without compatibility testing
• Do not use in pure oxygen or chlorine-rich systems
• Use appropriate PPE and consult MSDS before handling
• Activator 7471 or 7649 recommended for inactive metals or faster cure

Packaging & Procurement

• Supplied in convenient single-component bottles
• No mixing required for field or hangar use
• Optimal storage: 8–21°C (46–70°F)
• Do not return used material to original container
• Easy application for blind and thru-hole assemblies

Why LOCTITE 275 is Chosen for AOG / MRO

• Permanent, high-strength locking for critical assemblies
• Reliable resistance to vibration, heat, and chemicals
• Fast cure options using activators for urgent repairs
• UV fluorescence for quick inspection and QA checks
• Reduces maintenance downtime and fastener failure risk

Practical Suggestions for Your Team (AOG Mindset)

• Stock for heavy maintenance and structural fastening kits
• Train technicians on heat-assisted disassembly procedures
• Pair with Loctite cleaning solvents and activators
• Store in temperature-controlled tool cribs

Manufacture / Aviation Spec Codes

• Manufacturer: Henkel Loctite
• Product ID: LOCTITE 275
• Reference: Technical Data Sheet – June 2004

Alternative Names & Descriptions

• Loctite 275 High Strength Threadlocker
• Henkel 275 Permanent Threadlocker
• Loctite 275 Green Threadlocker
• High Strength Anaerobic Threadlocker 275
• Loctite Heavy Duty Fastener Locker