- CEO
- Hideaki Nishioka
- Full Time Employees
- 419
- Sector
- Process industries
- Industry
- Chemicals: specialty
- Address
- Memento Shiodome Tokyo Japan 105-0021
- IPO Date
- Sep 7, 1962
- Business
- Lonseal Corporation manufactures and sells synthetic resin processed products, including architectural flooring materials, sheet waterproofing materials, housing materials, wall covering materials, vehicle flooring materials, and film bases for semiconductors and electronic components. The company operates through two main segments, Synthetic Resin Processed Products and Others, offering specialized products such as antivirus, antibacterial, deodorizing, and contamination-proof wall materials; functional and antifouling flooring; high-design, safety-focused wallpapers distributed nationwide in Japan; and polymer films for transportation applications including trains, buses, and aircraft. Lonseal serves diverse markets encompassing schools, medical facilities, condominiums, retail spaces, factories, and infrastructure projects, with a strong emphasis on environmental conservation, safety, and advanced waterproof technologies pioneered over 50 years ago. Founded in September 1928 and incorporated in December 1943, Lonseal Corporation maintains its headquarters at MOMENTO SHIODOME, 2-3-17, Higashi-Shimbashi, Minato-ku, Tokyo 105-0021, Japan, and conducts operations through facilities including Tsuchiura Works and eight branch offices primarily in Japan, alongside international sales in North America via its subsidiary Lonseal, Inc. Recent developments include the June 2025 launch of LONBETON TOPSEAL flooring by its U.S. subsidiary, the August 2024 introduction of a new Earl Gray color variant for the Lonwood Madera Topseal line, the July 2024 release of Lonwoven Topseal sheet vinyl, and the appointment of new sales managers in June 2024 to bolster its North American presence.