Loctite 609 vs. 680: Bond Strength Analysis
Comparing LOCTITE 609 vs. 680
In this section, we will delve into a comparative analysis of LOCTITE 609 and LOCTITE 680, highlighting their unique characteristics and applications.
Introducing LOCTITE 609
LOCTITE 609 is a high-strength, methacrylate ester acrylic retaining compound. It is specifically designed for bonding cylindrical fitting parts such as rotors to shafts in fractional and sub-fractional horsepower motors. This product is highly effective for gaps up to 0.006 inches, making it suitable for press fit applications.
Key features of LOCTITE 609 include:
- High-strength bond for cylindrical parts
- Suitable for small gaps up to 0.006 inches
- Green in color for easy identification
For comprehensive data on LOCTITE 609, you can explore further at LOCTITE 603 vs. 609.
Introducing LOCTITE 680
LOCTITE 680 is also a high-strength, methacrylate ester acrylic retaining compound. However, it is designed for bonding cylindrical fitting parts with larger gaps than LOCTITE 609. LOCTITE 680 can handle bond gaps up to 0.25 mm, making it ideal for applications with more substantial gaps and ensuring a robust bond that prevents loosening and leakage due to shock and vibration (Henkel Adhesives).
Key features of LOCTITE 680 include:
- High-strength bond for cylindrical parts with larger gaps
- Suitable for bond gaps up to 0.25 mm
- Exhibits robust cure performance on both active and passive substrates
For detailed insights and comparisons, visit LOCTITE 620 vs. 680.
In summary, while both LOCTITE 609 and LOCTITE 680 offer high-strength bonding solutions for cylindrical fitting parts, they cater to different gap tolerances and specific application needs. Further details on pricing, availability, and assembly guidelines can be found in the succeeding sections of this article. For more comparisons and alternatives, explore articles like LOCTITE 638 vs. 680 and structural adhesive vs. welding.
Strength and Gap Tolerance
When it comes to choosing between LOCTITE 609 and LOCTITE 680, one of the most critical factors to consider is their strength and gap tolerance.
Strength of LOCTITE 609
LOCTITE 609 is a medium-strength, oil-tolerant adhesive designed for bonding cylindrical fitting parts. It boasts a bonding strength of 2300 Psi, making it suitable for fine threads and coarse threads applications. This adhesive is particularly effective in applications requiring moderate bonding strength. For more information on other adhesives, such as loctite 380 vs. 480, check our comparison pages.
| Adhesive | Bonding Strength (Psi) | Suitable For |
|---|---|---|
| LOCTITE 609 | 2300 | Fine Threads, Coarse Threads |
Strength of LOCTITE 680
In contrast, LOCTITE 680 offers a significantly higher bonding strength of 4480 Psi. This high-strength adhesive is ideal for applications requiring robust and secure bonding where maximum locking features are essential. For details on comparing other high-strength adhesives, visit loctite 620 vs. 680.
| Adhesive | Bonding Strength (Psi) | Suitable For |
|---|---|---|
| LOCTITE 680 | 4480 | Robust Bonding, Maximum Locking |
Gap Recommendations
Gap tolerance is another critical aspect to consider when choosing between these two adhesives. LOCTITE 609 is recommended for gaps up to 0.006 inches in press fits. This green, high-strength methacrylate ester acrylic retaining compound is designed specifically for bonding cylindrical fitting parts such as rotors to shafts.
Both LOCTITE 609 and LOCTITE 680 are effective for different ranges of surface roughness:
- For thinner products like LOCTITE 609, a surface roughness range of 0.025 mm to 0.08 mm is ideal.
- For thicker products, a surface roughness range of 0.05 mm to 0.1 mm is recommended.
Additionally, LOCTITE 609 can handle surface roughness from 0.8 microns to 3.2 microns, though up to 50 microns is acceptable if eccentricity is not an issue.
| Adhesive | Max Gap Tolerance | Surface Roughness (mm) |
|---|---|---|
| LOCTITE 609 | 0.006 in | 0.025 – 0.08 (thin), 0.05 – 0.1 (thick) |
| LOCTITE 680 | Refer to specs | N/A |
For further comparisons of adhesives, such as those between different grades of glues, check out our articles on ca glue vs. wood glue and contact cement vs. wood glue.
Applications and Suitability
Suitable Applications for LOCTITE 609
LOCTITE 609 is designed for bonding cylindrical fitting parts, making it ideal for a variety of engineering applications. This green, medium-strength methacrylate ester acrylic retaining compound is particularly suited for press fits with gaps up to 0.006 inches (Henkel Adhesives). It is commonly used to bond rotors to shafts in fractional and subfractional horsepower motors and is also suitable for locking bushings and sleeves in housings on shafts (Try Loctite).
The adhesive cures in the absence of air between close-fitting metal surfaces and can handle a medium strength bond with a strength rating of 2300 Psi (Try Loctite). LOCTITE 609 is oil-tolerant, further expanding its versatility in mechanical environments.
| Application | Description |
|---|---|
| Rotor to Shaft Bonding | Used in fractional and subfractional horsepower motors for secure bonding |
| Bushing and Sleeve Locking | Ensures steady placements within housings on shafts |
| Press Fit Bonding | Ideal for gaps up to 0.006 inches |
For anyone considering LOCTITE 609 for their projects, it is advisable to follow the specific assembly guidelines to achieve optimal results.
Suitable Applications for LOCTITE 680
LOCTITE 680, on the other hand, is a high strength, high-temperature retaining compound that excels in bonding larger gaps and heavy-duty assemblies (Henkel Adhesives). This makes it suitable for more demanding industrial applications. LOCTITE 680 is designed for bonding cylindrical parts such as bearings, gears, and cylindrical joints where high temperature tolerance and strong adhesion are required.
LOCTITE 680 operates effectively in environments that experience temperature fluctuations and mechanically intensive conditions. This ensures a robust bond that maintains structural integrity under pressure.
| Application | Description |
|---|---|
| Bearing Retention | Ensures secure placement of bearings in high-stress environments |
| Gear Bonding | Suitable for large gears needing strong and reliable adhesion |
| Cylindrical Joint Assembly | Ideal for heavy-duty industrial joints subjected to high temperatures |
Selecting the right compound depends on the specific requirements of the application. For a comprehensive comparison, including pricing and availability, refer to our section on cost of LOCTITE 680.
Both LOCTITE 609 and LOCTITE 680 offer excellent solutions for retaining applications, each suited to different needs depending on the project requirements. For more detailed insights, check out our other resources such as structural adhesive vs. welding and liquid nails vs. e6000.
Pricing and Availability
When comparing LOCTITE 609 and LOCTITE 680, knowing the cost and availability of each product is essential for making an informed decision.
Cost of LOCTITE 609
LOCTITE 609 is a popular choice for bonding cylindrical parts due to its low-viscosity properties and medium strength. It is available for purchase starting at $20.61 (Henkel Adhesives). This adhesive is known for its oil tolerance and bonding strength of 2300 Psi, making it suitable for both fine and coarse threads applications (Try Loctite).
| Product | Price (USD) | Strength (Psi) | Viscosity | Availability |
|---|---|---|---|---|
| LOCTITE 609 | $20.61 | 2300 | Low | Widely Available |
Cost of LOCTITE 680
LOCTITE 680 is known for its high strength and low-viscosity characteristics, with applications that require a robust and secure bond. It is available for purchase starting at $24.17 (Henkel Adhesives). This adhesive boasts a bond strength of 4200 Psi, making it ideal for demanding applications where maximum locking strength is essential (Try Loctite).
| Product | Price (USD) | Strength (Psi) | Viscosity | Availability |
|---|---|---|---|---|
| LOCTITE 680 | $24.17 | 4200 | Low | Widely Available |
For more detailed comparisons between different types of adhesives, take a look at our other articles such as loctite 380 vs. 480, loctite 565 vs. 567, and loctite 603 vs. 609. Additionally, if you’re interested in understanding how different adhesives fare against common substances, check out is jb weld waterproof and is jb weld heat resistant.
Surface Roughness Recommendations
Surface Requirements for LOCTITE 609
LOCTITE 609 is ideal for use in slip fit assemblies with minimal clearance, meaning both parts should be coated to ensure a secure fit in tight or close-fitting situations. The recommended surface roughness for cylindrical parts using LOCTITE 609 ranges from 0.8 microns to 3.2 microns. However, a roughness of up to 50 microns can be acceptable if eccentricity is not an issue (LOCTITE).
| Surface Roughness | Microns (µm) |
|---|---|
| Recommended Range | 0.8 – 3.2 |
| Acceptable (if no eccentricity) | up to 50 |
Surface Requirements for LOCTITE 680
In contrast, LOCTITE 680 is a high-strength adhesive that provides robust bonding with a strength of 4200 psi. This makes it particularly suitable for applications demanding greater bond strength. It is essential to ensure proper surface preparation and roughness to maximize the performance of LOCTITE 680.
Comparing these two products, the choice between LOCTITE 609 and 680 largely depends on the specific requirements of your assembly, including the necessary bond strength and the acceptable level of surface roughness.
For more detailed information on different adhesives and their appropriate use, be sure to check out our other articles, such as loctite 380 vs. 480 and loctite 638 vs. 680.
Assembly Recommendations
When using adhesives like LOCTITE 609 and LOCTITE 680, it’s crucial to follow specific guidelines to achieve the best results.
Assembly Guidelines for LOCTITE 609
LOCTITE 609 is typically used for slip fit assemblies, where the adhesive is applied to only one of the parts. The following assembly steps are recommended:
- Surface Preparation: Ensure that both bonding surfaces are clean, dry, and free from oil or grease.
- Adhesive Application: Apply a small amount of LOCTITE 609 to one of the mating parts. It’s essential to use the right amount to avoid excess adhesive overflow.
- Assembly Motion: Insert the parts together with a twisting or turning motion. This helps to evenly distribute the adhesive and eliminate air gaps.
- Fixture Time: Hold the parts in place until initial handling strength is achieved, typically around 10 to 20 minutes.
- Full Cure: Allow the adhesive to fully cure, which generally takes 24 hours for maximum bond strength.
For more information on using LOCTITE 609 and its applications, you can check our comparative analysis on loctite 603 vs. 609.
Assembly Guidelines for LOCTITE 680
LOCTITE 680 is designed for high strength and maximum locking applications. Follow these steps for optimal assembly:
- Surface Preparation: Clean both bonding surfaces thoroughly to remove any contaminants.
- Adhesive Application: Apply LOCTITE 680 to one of the surfaces. Ensure an even coat without over-application.
- Immediate Assembly: Immediately assemble the parts together. The initial set time is quick, so swift coupling is recommended.
- Pressure Application: Maintain pressure to ensure close contact between the bonding surfaces. This helps in achieving an even bond.
- Fixture Time: LOCTITE 680 sets within 10-25 minutes, but it is advisable to avoid any significant load on the assembly until it is fully cured.
- Full Cure: A complete cure usually occurs within 24 hours, after which the assembly can be subjected to full operational loads.
For further details on different adhesives compare loctite 620 vs. 680 to make an informed decision.
By following these assembly guidelines, you can maximize the effectiveness and longevity of your bonded assemblies. For more insights on adhesives and other related products, explore our articles on topics like ca glue vs. wood glue and construction adhesive vs. wood glue.
