Hard Soldering - Not a Book with Seven Seals. Hard soldering is the ideal connection method for many tasks in model building, as well as, for example, in the restoration of original vehicles. For some model building projects, such as steam engines and boilers, this technique is even indispensable. In ship and truck model building, or for special applications in aircraft modeling, stable and durable connections can be made using hard soldering. The author has gathered decades of experience in both profession and hobby with hard soldering and shares this knowledge in this book. The physical and chemical fundamentals, as well as material and tool science, are explained, along with the extremely important safety aspects in this field. Of course, the practical side of hard soldering is also covered and presented in all its diversity. With this book, hard soldering loses its intimidation factor.