Henkel LOCTITE-603 (10ML-BOTTLE)

Additional Product Information

Overview

LOCTITE 603 is a high-strength, one-component retaining adhesive used extensively in aviation and MRO operations. It is designed to bond cylindrical metal parts even when surfaces are not perfectly clean, ensuring secure, vibration-resistant assemblies. Maintenance teams rely on it for fast, reliable installation and long-lasting performance in critical applications such as roller bearings, bushings, and press-fitted assemblies.

Key Technical Specs for LOCTITE 603

• Type: Acrylic, Urethane Methacrylate
• Size/Volume: Available in multiple container sizes (check packaging)
• Color: Green liquid (uncured)
• Viscosity/Consistency: Low viscosity; Brookfield RVT 100 150 cP @ 25 C
• Cure/Working Time: Anaerobic cure; accelerates with Activator 7471 or 7649
• Tensile/Peel Strength: Compressive shear strength ?22.5 N/mm (3,260 psi) on steel after 24 hours
• Shore Hardness: Not specified for this product
• Service Temperature: Up to 150 C (302 F) for extended chemical and heat resistance
• Typical Uses: Retaining bearings, bushings, press-fitted or shrink-fitted assemblies
• Shelf Life: Store unopened containers at 8 21 C (46 70 F); avoid exposure below 8 C or above 28 C

Approvals & Specifications

• NSF International: Registered Category P1 for sealant use in non-food-contact areas
• ISO 10123: Shear strength testing standard

Typical Aircraft MRO / AOG Applications

• Retaining roller bearings in engine or landing gear assemblies
• Securing oil-impregnated bushings in housings
• Fixing press-fitted shafts and collars
• Bonding components in high-vibration environments

Compatibility & Safety Notes

• Substrate Compatibility: Metals; not recommended for most plastics or thermoplastics
• Handling Notes: Wear appropriate PPE; avoid contact with skin and eyes
• Cleaning: Use LOCTITE solvents and mechanical abrasion for cured residue
• Environmental Compatibility: Check washing solutions before bonding to avoid interference with cure

Packaging & Procurement

• Sizes: Multiple container volumes available
• Market Packs: Standard industrial packaging
• Storage: Dry location, 8 21 C (46 70 F)
• Ease of Use: One-component, no mixing required; suitable for slip, press, or shrink-fitted assemblies

Why LOCTITE 603 is Chosen for AOG / MRO

• Fast, reliable bonding in confined assemblies
• High-strength performance even on unclean surfaces
• Resistant to vibration, shock, and thermal/chemical stress
• Versatile for multiple assembly methods and industrial environments

Practical Suggestions for Your Team (AOG Mindset)

• Stock multiple container sizes for rapid deployment during AOG situations
• Ensure team training on anaerobic curing and use of activators for slow-cure substrates
• Use proper PPE and follow safe handling procedures
• Keep separate tools for adhesive application to avoid contamination

Manufacture / Aviation Spec Codes

• Manufacturer: Henkel Corporation
• Product ID: LOCTITE 603
• MIL/OEM/Export Codes: Refer to Henkel Quality & Technical Service for batch-specific codes

Alternative Names & Descriptions

• LOCTITE 603 Retaining Compound
• Henkel 603 Bearing Adhesive
• LOCTITE 603 Anaerobic Retainer
• 603 Cylindrical Fitting Adhesive
• LOCTITE Industrial Retainer 603