Henkel LOCTITE-635 (50-ml-Btl)

Additional Product Information

Overview

LOCTITE 635 is a high-strength, one-component anaerobic adhesive used for bonding cylindrical fitting metal parts. Widely employed in aviation and MRO (Maintenance, Repair, and Overhaul) operations, it prevents loosening and leakage caused by vibration or shock. Maintenance teams rely on it for secure assembly in rotors, bushings, sleeves, and press-fit applications.

Key Technical Specs for LOCTITE 635

• Type: Acrylic, Dimethacrylate ester
• Size/Volume: Available in multiple industrial containers (contact supplier for options)
• Color: Green opaque liquid (uncured)
• Viscosity/Consistency: Medium (1,500 2,500 mPa s at 25 C, Brookfield RVT, Spindle 3, 20 rpm)
• Cure/Working Time: Anaerobic cure; speed depends on substrate and temperature. Activators 7471 or 7649 can accelerate cure.
• Tensile/Peel Strength: Compressive shear strength on steel up to 31 N/mm (4,495 psi) with heat cure
• Shore Hardness: Not specified
• Service Temperature: Effective from room temperature up to 149 C (300 F) short-term exposure
• Typical Uses: Retaining cylindrical parts, rotors to shafts, bushings and sleeves, press-fit assemblies
• Shelf Life: Store 8 21 C (46 70 F) in original container; avoid contamination

Approvals & Specifications

• Military: Mil-R-46082B (regional approval, contact Technical Service for clarification)
• Tested per ASTM D5363
• ISO 10123 testing for shear strength

Typical Aircraft MRO / AOG Applications

• Rotor to shaft bonding in fractional and subfractional horsepower motors
• Locking bushings and sleeves in housings
• Enhancing press-fit assemblies during AOG repairs
• Retention of cylindrical fittings in avionics and small mechanical assemblies

Compatibility & Safety Notes

• Not recommended for pure oxygen or strong oxidizers
• May not be suitable for some plastics (risk of stress cracking); test compatibility first
• Wear appropriate PPE during handling; consult MSDS for safe use
• Ensure cleaning solvents are compatible with adhesive; aqueous washing systems may affect cure

Packaging & Procurement

• Available in multiple industrial packaging sizes; contact supplier for details
• One-component system for easy application without mixing
• Store in dry location at 8 21 C (46 70 F)
• Easy-to-use for slip, press, and shrink-fitted assemblies

Why LOCTITE 635 is Chosen for AOG / MRO

• High reliability under vibration and shock conditions
• Fast and predictable curing with optional activators
• Versatile for multiple assembly types: slip-fit, press-fit, shrink-fit
• Compact and portable for on-site or emergency AOG repairs

Practical Suggestions for Your Team (AOG Mindset)

• Maintain a small stock of LOCTITE 635 for urgent rotor or bushing repairs
• Use activators for inactive metals or large gaps to accelerate cure
• Ensure training on proper surface preparation and application technique
• Apply heat for safe disassembly when required (up to ~250 C / 482 F)

Manufacture / Aviation Spec Codes

• Manufacturer: Henkel Corporation
• Product ID: LOCTITE 635
• MIL / OEM / Export Codes: Mil-R-46082B

Alternative Names & Descriptions

• LOCTITE 635 Retaining Compound
• LOCTITE 635 Anaerobic Adhesive
• Henkel LOCTITE 635
• LOCTITE 635 Green Liquid
• LOCTITE 635 Industrial Retaining Adhesive