Henkel LOCTITE-603 (250ML-BOTTLE)

Additional Product Information

Overview

LOCTITE 603 is a high-performance acrylic retaining adhesive designed for bonding cylindrical fitting parts in aviation and MRO operations. Teams rely on it to secure roller bearings, bushings, and press-fitted components in aircraft assemblies, ensuring reliable retention under vibration, thermal cycling, and shock. Its one-component, low-viscosity formulation simplifies application and reduces downtime in critical maintenance and repair tasks.

Key Technical Specs for LOCTITE 603

• Type: Acrylic, urethane methacrylate
• Size/Volume: Various industrial pack sizes available
• Color: Green (uncured)
• Viscosity/Consistency: Low viscosity, Brookfield 100 150 cP at 25 C
• Cure/Working Time: Anaerobic; handling strength in 30 min @ 22 C, full cure in 24 h
• Tensile/Peel Strength: Compressive shear strength ?13.5 N/mm (1,960 psi) at 30 min, ?22.5 N/mm (3,260 psi) at 24 h
• Shore Hardness: N/A (liquid adhesive)
• Service Temperature: Maintains performance up to 150 C (302 F)
• Typical Uses: Retaining bearings, bushings, cylindrical assemblies, press and slip fits
• Shelf Life: Store unopened at 8 21 C (46 70 F) in a dry location; avoid temperatures below 8 C or above 28 C

Approvals & Specifications

• NSF International, Category P1 (non-food contact areas)
• Compliant with ISO 10123 for shear strength testing
• Meets general industrial and aviation bonding standards

Typical Aircraft MRO / AOG Applications

• Securing roller bearings in aircraft engines and gearboxes
• Bonding oil-impregnated bushings into housings
• Retaining press-fitted shafts and cylindrical components
• Maintenance of landing gear assemblies under vibration conditions

Compatibility & Safety Notes

• Compatible with most metals: steel, aluminum, zinc dichromate; not recommended for pure oxygen systems or certain plastics
• Use PPE: gloves and eye protection during application
• Avoid contamination: clean surfaces with LOCTITE solvent before bonding
• Ensure curing in confined gaps; use activator 7471 or 7649 for inactive metals or large gaps

Packaging & Procurement

• Available in multiple industrial container sizes
• Easy-to-use, single-component liquid adhesive; no mixing required
• Store in original container in dry location, 8 21 C (46 70 F)
• Unopened product maintains quality; do not return contaminated material to container

Why LOCTITE 603 is Chosen for AOG / MRO

• High-strength retention reduces component failure and maintenance downtime
• Reliable under shock, vibration, and thermal cycling
• Versatile for slip, press, and shrink-fitted assemblies
• Portable, single-component formulation ideal for rapid on-aircraft repairs

Practical Suggestions for Your Team (AOG Mindset)

• Stock critical sizes and activators to prevent delays
• Ensure surface cleaning and compatibility checks prior to bonding
• Provide training for safe handling, assembly techniques, and disassembly procedures
• Use localized heating for part removal when necessary

Manufacture / Aviation Spec Codes

• Manufacturer: Henkel Corporation
• Product ID: LOCTITE 603
• MIL/OEM Codes: Consult Henkel Technical Service for regional specifications

Alternative Names & Descriptions

• Henkel LOCTITE 603 Retaining Compound
• LOCTITE Bearing Retainer 603
• LOCTITE Cylindrical Bonding Adhesive 603
• LOCTITE Industrial Retaining Compound
• LOCTITE 603 One-Component Retainer