Spontaneous breakage of tempered glass due to nickel sulfide (NiS) inclusions poses a significant safety risk in large-scale architectural applications. This phenomenon occurs when nickel reacts with sulfur during the manufacturing process, creating internal stresses that can lead to fractures without prior warning. Such breakages often happen without any visible indication, making it a hidden danger for building safety and durability. In this presentation, we will explore the origins of nickel sulfide inclusions, how they are formed during the glass production process, and their potential impact on the long-term integrity of glass installations. While the presence of NiS is often undetectable through visual inspection, it can have catastrophic consequences, particularly in applications where glass is a critical structural element. We will delve into the current methods for identifying and managing these inclusions, including advanced techniques such as the Heat Soak Test (HST), which helps to identify at-risk glass units before installation. We will also discuss preventive strategies, such as optimizing raw material purity and refining production techniques to minimize nickel contamination. Beyond addressing the risks, we will propose innovative approaches to improving the safety and reliability of tempered glass in demanding environments. By considering alternative glass options like heat-strengthened or laminated glass, we can reduce the likelihood of spontaneous breakage. This presentation aims to spark an informed, forward-thinking discussion on how we can continue to improve the performance of tempered glass, ensuring that it meets the highest safety standards.
Juan Pablo Martinez
Invisible danger: Safeguarding Glass from de Risk of Nickel Sulfide
Company: ES/Tecnoglass, Colombia
About the speaker:
Juan Pablo Martínez is the Facade Production Manager at ES, a leading manufacturer of architectural glass, window, door, and façade systems for high-end commercial and residential construction projects around the world. He is an Industrial Engineer with an M.B.A. from Universidad del Norte. Juan Pablo is a customer-focused leader who has been actively involved in product development and quality assurance decisions for over 14 years, contributing to the growth and innovation of the company.