Real-World Application of Patented Wax-Sealing Technology

Since 1994, Shenyang Hounda Floor Processing Co., Limited has been at the forefront of innovation in China’s laminate flooring industry. A key milestone was achieved in 2005, when the company developed and deployed China’s first automatic edge-waxing machine for solid wood flooring—a breakthrough that enabled the successful application of click-lock laminate flooring in underfloor heating (geothermal) systems.

Unlike conventional locking systems, Hounda’s patented wax-sealed joint technology significantly reduces moisture ingress at plank seams, enhancing dimensional stability in environments with fluctuating temperature and humidity—common challenges in geothermal installations.

This innovation builds on the company’s legacy of solving real-world installation issues, beginning with its development of China’s first automated UV coating line in 1996. Today, Hounda’s geothermal-compatible flooring products are manufactured on fully automated lines equipped with Weinig precision machining systems and Leuco/Leitz cutting tools, delivering surface durability exceeding 8,000 revolutions (AC4 rating) and compliance with E1 formaldehyde emission standards (<0.5 mg="">

The technology has been widely applied in residential and commercial projects across northern and western China, where underfloor heating is standard.