Description
🔧 Overview of Loctite 609 Retaining Compound – 50 ml
The Loctite 609 retaining compound is a high-strength, anaerobic adhesive designed for bonding cylindrical metal components, such as shafts, gears, pulleys, and bearings. Its medium-viscosity formula fills microscopic gaps between close-fitting parts to prevent loosening, corrosion, and wear over time.
Packaged in a compact 50 ml bottle, this green compound is perfect for both OEM and maintenance operations where precision and durability are essential.
⚙️ Technical Specifications
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Brand: LOCTITE 
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Model: 609 
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Size: 50 ml 
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Color: Green 
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Viscosity: 125 cP 
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Strength: High 
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Cure Type: Anaerobic 
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Fixture Time: 10 – 20 minutes 
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Full Cure: 24 hours 
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Temperature Range: -65°F to 300°F (-55°C to 150°C) 
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Gap Fill: Up to 0.005″ (0.127 mm) 
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Recommended Use: Close-fitting press-fit parts 
🧰 Common Applications
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Mounting bearings in housings 
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Securing bushings, sleeves, or collars 
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Holding gears or pulleys onto shafts 
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General shaft-to-hub assemblies 
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Preventing loosening in vibrating machinery 
When press-fit components must stay in place under load, the Loctite 609 retaining compound is the go-to solution.
💡 Key Benefits
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High-strength hold: Prevents loosening due to vibration or shock 
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Corrosion resistance: Seals out moisture and contaminants 
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No shrinkage: Fills gaps and maintains fit integrity 
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Oil-tolerant: Bonds even slightly contaminated surfaces 
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Versatile: Compatible with a wide range of metals 
🛠 How to Use Loctite 609
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Clean and degrease surfaces with Loctite SF 7063 or equivalent. 
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Apply a small amount of Loctite 609 retaining compound to the shaft and/or housing bore. 
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Assemble the parts with a rotating motion to evenly spread adhesive. 
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Allow to cure — fixture time is typically 10–20 minutes; full strength in 24 hours. 
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For disassembly, use heat (>250°C) and mechanical tools. 
🔍 Comparison with Loctite 680
| Feature | Loctite 609 | Loctite 680 | 
| Strength | High | Very High | 
| Viscosity | Low (125 cP) | Medium | 
| Gap Fill | Up to 0.005″ | Up to 0.015″ | 
| Use Case | Close-fit parts | Slightly looser fits | 
| Fixture Time | ~10–20 minutes | ~10 minutes | 
 
 
Choose Loctite 609 when exact fit and fast cure are required.
🏆 Why Choose Loctite?
Loctite retaining compounds are trusted by professionals in the automotive, aerospace, manufacturing, and maintenance industries. The Loctite 609 offers proven strength, ease of use, and dependable results — making it a must-have for ensuring secure mechanical assemblies.
 
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