Everwide newsletter No.451

Experiment § Siloxane-based water-based waterproofing agent

Everwide has developed the siloxane-based water repellent FX302-13, which is a versatile, one-step, waterproof air-drying coating designed for easy application via spraying, making it suitable for both indoor and outdoor use (Figure 1). This solvent-based, transparent liquid offers excellent waterproof performance while maintaining the original look and feel of treated materials, making it ideal for textiles such as suede, nylon, polyester, cotton, and even non-woven shoes, as well as building materials like stone, marble, brick, and ceramic. With a

neutral pH, a density of 0.93 g/cm³, and a viscosity of 23 cps at 25°C, this product is free from harmful chemicals like fluoride, PFOA, and PFOS, ensuring eco-friendly use. It can be cured at room temperature or with heat, providing long-lasting water repellency to keep items drier for extended periods. Whether applied to fabrics, wood, paper, or other materials, FX302-13 delivers reliable moisture protection without compromising aesthetics or functionality. After 5 months of storage at room temperature, FX302-13 exhibits no significant changes in viscosity, contact angle, or water repellency performance (Figure 2,3). This demonstrates the stability and consistent performance of the FX302-13 solution. We invite you to contact us if you're interested. — Dr. Chemazam

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Activity § Film: Taiwan Superhero

We support local films and recently organized a private screening of Taiwan Superhero, inviting our colleagues, their families and friends, students, and charitable organizations to join us. The film is inspired by several true stories, including those of an inventor with disabilities, a multi-talented individual with Down syndrome, and a para-athlete with cerebral palsy. It tells the story of how, despite facing numerous challenges, they bravely confront and overcome obstacles, embodying the resilient spirit of a true “superhero.”Audience feedback: “Watching their stories made me reflect on my life. We are so fortunate—everyone must keep striving and never give up.”After the film, I felt empowered and full of hope.” We are grateful that the film brought so much inspiration and positive energy to everyone.

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Knowledge § Theoretical vs. Actual Strength of Polymers (1)

The reasons materials break vary depending on the type. For metals and diamonds, failure typically requires breaking the primary chemical bonds. Polymers are more complex, involving covalent bonds, hydrogen bonds, dipole interactions, and van der Waals forces. The proportion and behavior of these forces during fracture depend on the material's structure and testing conditions. The ideal strength of a polymer is achieved when the molecular chains are perfectly aligned in the direction of the applied force, allowing them to bear the load together and break simultaneously. In this scenario, the theoretical strength equals the strength of each main chain multiplied by the number of chains. In reality, however, the strength of polymers is only about 1/5 to 1/10 of their theoretical strength. This is because polymer chains are not perfectly aligned, and many defects exist within the molecular chains.

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Living §  Fire Safety Education and Training

In recent years, there has been an increase in factory fires, including serious incidents caused by the improper storage of hazardous materials. In response, fire departments have continued to strengthen hazardous materials management systems. They also conduct regular fire safety education and professional training to improve workers' fire safety knowledge and emergency response skills. The 2025 training program was organized by the Douliu Fire Department and included both theoretical instruction and practical exercises. The course began with fire officers explaining the key updates to current fire safety regulations, helping participants understand the latest legal requirements and ensure workplace compliance. The training also covered the roles and responsibilities of internal fire response teams within factories, emphasizing the importance of teamwork during a fire emergency. Hands-on training included CPR and AED drills to enhance first aid skills for sudden medical situations. Participants also learned about the function and operation of wirelessly interconnected residential fire alarms. The session concluded with fire hydrant operation drills, allowing everyone to become familiar with the correct use of firefighting equipment. This training not only deepened participants’ understanding of fire safety but also boosted their confidence and ability to respond to emergencies. Moving forward, I will apply these professional skills and knowledge in my work, aiming to put fire safety into action and help create a safer working environment. — Author: Mr. Ming-De Liu