Click Bond, Inc., based in Carson City, Nevada, has been a leader in the aerospace fastener industry since 1987. The company’s product line includes adhesive-based fastening solutions such as nutplates, inserts, and standoffs, which are widely used in aerospace, military, and space applications. These components are designed to simplify installation processes, reduce structural drilling requirements, and enhance durability in high-stress environments. This article provides an overview of Click Bond’s installation procedures for its adhesive-based nutplates and explores other relevant products such as inserts, hollow screws, and the company’s broader contributions to the aerospace industry.
Overview of Click Bond Products and Applications
Click Bond offers a wide range of fastening solutions designed for both professional and DIY applications in the aerospace industry. Among these, the adhesive-bonded nutplates are the most widely recognized. These nutplates eliminate the need for traditional drilled rivet holes, simplifying installation and reducing structural damage. The company’s FLEXBOND line of nutplates, in particular, is engineered for high-stress or vibration-intensive environments, using expanded ACRES sleeves to cold work structural holes and increase durability.
Beyond nutplates, Click Bond also produces inserts designed to protect composite structures from wear caused by repeated fastener insertion and removal. These inserts are bonded into holes and provide a durable metal surface for bolt engagement, making them ideal for both high-end aerospace applications and lighter homebuilt structures such as composite cowls. Additionally, the company offers a line of hollow screws, which are useful in applications where weight savings are a priority and maximum strength is not required.
Click Bond Nutplate Installation Procedures
The installation of Click Bond nutplates requires careful adherence to a series of steps involving surface preparation, epoxy application, and curing. These procedures are outlined in detail in the Click Bond Nutplate Install and Removal document, which is considered an authoritative source for installation guidance.
Surface Preparation
Proper surface preparation is critical to achieving a strong and durable bond. The installation document emphasizes the importance of cleaning both the nutplate and the surface to which it will be bonded. Surfaces must be free of oils, grease, and other contaminants that could interfere with the epoxy’s adhesion. Additionally, the surface must be roughened using appropriate abrasion techniques to increase the epoxy’s grip.
Epoxy Mixing and Application
Click Bond nutplates are installed using a two-part epoxy adhesive, such as Hysol 9309. The epoxy is mixed on the spot using small packets or a gun dispenser and mixing nozzle. The document notes that the mixing tip in the Click Bond system is sacrificial, allowing for multiple nozzles to be used as needed without the need to replace the entire dispenser. This feature is particularly useful for large-scale installations where multiple nutplates need to be bonded at once.
The epoxy is applied to the back of the nutplate before positioning it onto the prepared surface. It is important to ensure that the nutplate is aligned correctly and pressed firmly into place to ensure full contact between the adhesive and the surface.
Installation and Curing
Once the nutplate is in place, it must be allowed to cure according to the specified time frame. The Click Bond installation document recommends allowing the epoxy to cure for at least the minimum time specified by the manufacturer. During this time, the nutplate should not be disturbed to ensure that the bond forms properly.
After the epoxy has cured, a proof torque test is recommended to verify that the nutplate is securely bonded. This test involves applying a specified torque to the nutplate to confirm that it remains fixed in place and does not rotate or shift. If the nutplate passes the test, it is considered ready for use.
Removal Procedures
In cases where a Click Bond nutplate needs to be removed, the installation document provides detailed instructions for safely and effectively removing the component without damaging the surrounding structure. The removal process typically involves heating the epoxy to weaken the bond, using heat sources such as a heat gun or hot air tool. Once the bond has been sufficiently weakened, the nutplate can be carefully removed using appropriate tools.
It is important to note that the removal of a bonded nutplate may result in some damage to the epoxy or the surface, especially if the nutplate has been in place for an extended period. As such, it is recommended to perform any removal procedures with care and to use tools that minimize the risk of structural damage.
Additional Click Bond Products and Applications
In addition to nutplates, Click Bond offers a range of other fastening solutions that are widely used in both professional and DIY aerospace applications. These include inserts, standoffs, and hollow screws, each designed to address specific installation and performance requirements.
Inserts for Composite Protection
One of the key product lines offered by Click Bond is its range of inserts designed to protect composite structures from wear caused by repeated fastener use. These inserts are thin metal components with a countersunk flare at the top, allowing them to be bonded into holes of varying thicknesses. Once bonded, the insert provides a durable surface for bolt engagement, reducing the risk of damage to the composite material.
These inserts are particularly useful in applications involving thick structural components, such as spars and fuselages, as well as in lighter applications such as composite cowls. The use of inserts can significantly extend the lifespan of composite structures by minimizing the wear caused by repeated fastener insertion and removal.
Hollow Screws for Weight Reduction
Click Bond’s recent line of hollow screws is another innovative product designed to meet the needs of aerospace builders and DIY enthusiasts. These screws are available in #8 and AN3 sizes and are engineered to provide a lightweight alternative to traditional solid screws. The hollow design allows for weight savings without compromising structural integrity, making them ideal for applications where weight reduction is a priority.
These screws are manufactured using special drawing machines and feature standard thread sizes and grip lengths. Additionally, each screw includes an integrated washer in the head that spins separately from the screw itself, eliminating the need for a separate anti-gall washer. This feature simplifies installation and reduces the number of components required for fastening.
Adhesive Dispensing and Mixing Systems
Click Bond’s adhesive dispensing and mixing systems are designed to streamline the installation process and reduce the risk of contamination or improper mixing. The company offers both small adhesive packets for individual installations and larger dispensers for high-volume applications. These dispensers use a double-syringe design with a sacrificial mixing tip, allowing users to continue using the same cartridges until the adhesive is depleted.
The use of a sacrificial mixing tip is a key advantage of the Click Bond system, as it allows for continuous mixing without the need to replace the entire dispenser. This feature is particularly useful in professional settings where multiple nutplates or other components need to be installed in a single session.
Practical Applications and Industry Impact
Click Bond’s products have found widespread use in a variety of aerospace and industrial applications, ranging from high-end military and space equipment to homebuilt aircraft and DIY projects. The company’s adhesive-bonded fastening solutions offer several advantages over traditional methods, including reduced drilling requirements, faster installation times, and enhanced structural durability.
One notable example of Click Bond’s impact on the industry is its involvement in the aviation community. The company has partnered with organizations such as the General Aviation Manufacturers Association (GAMA) to provide educational opportunities for the next generation of aviators. For instance, Click Bond built a Glasair Sportsman using its products throughout the entire aircraft, involving both employees and student builders in the process. This initiative not only demonstrated the versatility and reliability of Click Bond products but also provided valuable hands-on experience for participants.
Additionally, Click Bond’s fastening solutions have been used in space applications, including the International Space Station. The company’s adhesive-attached products have been utilized as part of a leak repair kit, providing a quick and permanent solution for micrometeoroid-induced cabin leaks. This application highlights the reliability and performance of Click Bond products in extreme environments.
Conclusion
Click Bond’s adhesive-bonded nutplates, inserts, and other fastening solutions offer a range of benefits for both professional and DIY aerospace applications. These products simplify installation processes, reduce structural damage, and enhance durability in high-stress environments. The company’s detailed installation procedures and innovative product designs make it a valuable resource for builders and engineers in the aerospace industry.
Whether used in high-end military and space equipment or in homebuilt aircraft and DIY projects, Click Bond’s products provide reliable and efficient fastening solutions. The company’s commitment to innovation and quality ensures that its products continue to meet the evolving needs of the aerospace community.