Introduction to B8X 638 and Loctite 638
In the rapidly evolving landscape of new energy vehicles (NEVs), the demand for high-strength, reliable, and versatile adhesives has never been more critical. Both B8X 638 and Loctite 638 are leading anaerobic adhesives designed for retaining gears and pulleys under high loads, especially on oil-contaminated surfaces. This article will compare these two products, highlighting the unique advantages of B8X 638 in terms of cost, supply stability, and local support.
Technical Specifications of B8X 638
B8X 638 is a high-strength retaining compound with a viscosity of 2500 cP, making it suitable for precise application in tight spaces. The green color ensures easy visibility during application. With a fixture time of just 4 minutes, it provides a quick and efficient solution for assembly processes. The shear strength of B8X 638 is 4500 psi (31 N per mm²), ensuring robust bonding even under dynamic loads. The adhesive operates effectively in a temperature range from -54°C to 180°C, making it highly versatile for various environmental conditions. It is particularly effective on inert metals and stainless steel, and its oil-tolerant properties make it an excellent choice for applications where oil contamination is a concern.
Industry Applications and Use Cases
B8X 638 is widely used in dynamic load applications, such as retaining gears and pulleys in NEVs. Its ability to bond reliably on oil-contaminated surfaces makes it a preferred choice for automotive manufacturers. In addition, it is suitable for other industries, including electronics, aerospace, and mechanical manufacturing, where high-strength, fast-fixturing, and oil-tolerant adhesives are essential.
Comparison with Loctite 638
While both B8X 638 and Loctite 638 offer similar technical specifications, B8X 638 stands out in several key areas. Firstly, B8X offers competitive pricing, making it a cost-effective solution for large-scale production. Secondly, B8X's strong supply chain and local support network ensure consistent availability and timely delivery, which is crucial for maintaining production schedules. Lastly, B8X's commitment to sustainability and innovation aligns with the forward-thinking values of many modern manufacturers.
Advantages of B8X 638
Beyond its technical performance, B8X 638 offers several value-added benefits. The company's headquarters in Shenzhen, a global hub of advanced manufacturing and innovation, ensures that B8X is at the forefront of technological advancements. Additionally, B8X's dedication to customer support and sustainability makes it a trusted partner for companies looking to enhance their manufacturing processes while reducing their environmental footprint.
Packaging and Application
B8X 638 is available in convenient packaging options, including 20ml and 250ml bottles, catering to both small-scale and large-scale applications. The product is easy to apply and cures quickly, minimizing downtime and increasing productivity. Whether you are assembling components in a controlled environment or working in a more challenging setting, B8X 638 provides a reliable and efficient solution.

The image above shows a typical application of B8X 638, where the adhesive is applied to a gear and shaft assembly in a new energy vehicle. The green color of the adhesive is clearly visible, ensuring accurate and consistent application.
Conclusion
In conclusion, B8X 638 is a high-strength, oil-tolerant, and fast-fixturing retaining compound that offers significant advantages over its competitors. Its cost-effectiveness, supply stability, and local support make it an ideal choice for manufacturers in the NEV and other high-tech industries. By choosing B8X 638, companies can achieve reliable and sustainable bonding solutions, enhancing their overall production efficiency and quality.
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