Introduction:
Loctite 243 is a high-strength, medium-viscosity threadlocking anaerobic adhesive designed for permanent locking and sealing of threaded fasteners. It is a blue-colored liquid that cures in the absence of air between close-fitting metal surfaces. Loctite 243 is widely used in various industries, including automotive, manufacturing, and aerospace, for applications that require exceptional holding power and vibration resistance.
Key Characteristics of Loctite 243:
Benefits of Using Loctite 243:
Loctite 243 is suitable for a wide range of applications, including:
Property | Value |
---|---|
Viscosity | 850 - 1,200 mPa·s |
Density | 1.1 g/ml |
Gap Fill | 0.003 - 0.005 in (0.076 - 0.127 mm) |
Cure Time (25°C) | 24 hours |
Tensile Strength | 3,200 psi (22 MPa) |
Shear Strength | 3,000 psi (20.7 MPa) |
Temperature Range | -65°F to 300°F (-54°C to 149°C) |
Story 1:
A manufacturing company experienced frequent loosening of bolts on a critical assembly. This led to costly downtime and production delays. After implementing Loctite 243 on the threaded fasteners, the company eliminated the problem, significantly reducing maintenance costs and improving production efficiency.
Learning: Preventative use of Loctite 243 can proactively address potential fastener loosening issues, avoiding costly consequences.
Story 2:
A construction contractor was facing challenges with leaking pipe fittings in a commercial building. The contractor installed Loctite 243 on the threaded pipe joints, effectively preventing leakage and ensuring a safe and reliable plumbing system.
Learning: Loctite 243 is an effective solution for sealing threaded connections in plumbing applications, preventing water leakage and maintaining the integrity of the system.
Story 3:
An automotive enthusiast had a problem with a loose exhaust system on his car. By applying Loctite 243 to the exhaust manifold bolts, he was able to secure the system and eliminate the rattling noise.
Learning: Loctite 243 is a DIY-friendly solution for automotive applications, providing a secure hold for exhaust systems and other threaded components.
Pros:
Cons:
The cure time is 24 hours at room temperature (77°F).
The temperature range is -65°F to 300°F (-54°C to 149°C).
No, Loctite 243 is not recommended for use on plastic or porous surfaces.
Yes, Loctite 243 is suitable for use on aluminum surfaces.
Alternatives to Loctite 243 include Loctite 242 (low-strength threadlocker), Loctite 271 (high-strength threadlocker), and Loctite 648 (retaining compound).
Loctite 243 can be removed using a heat gun or chemical solvent.
Yes, Loctite 243 is commonly known as Loctite Blue due to its blue color.
No, Loctite 243 is not an instant adhesive. It requires 24 hours to achieve full cure.
Loctite 243 is a reliable and effective threadlocking anaerobic adhesive that offers exceptional holding power, vibration resistance, and leak prevention. Its wide range of applications and ease of use make it an indispensable tool for various industries and DIY enthusiasts. By using Loctite 243, you can ensure secure and reliable threaded assemblies, reduce maintenance costs, and extend the lifespan of your equipment.
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