Shandong Qingdao seal hardener which is the best, Qingdao Dumai New Technology Co., Ltd. Qingdao Dumai New Material Technology Co., Ltd. is a high-tech enterprise that integrates research and development, production, sales, design, and construction of environmentally friendly high-performance building and industrial flooring materials. Lithium-based seal hardeners are all nano-level materials with extremely strong penetration ability, which can effectively penetrate the concrete surface and actively undergo continuous chemical reactions with the concrete. The effective components of lithium-based seal hardeners combine with free calcium, potassium, and other ions that can reduce concrete strength to form a non-expanding, non-shrinking, stable chemical copolymer—hydrated calcium silicate, which fills the capillary pores in the concrete, making the entire concrete dense, strong, dust-free, crack-free, breathable, and colorful. This achieves the sealing effect of hardening, strengthening, dust prevention, water resistance, weathering resistance, abrasion resistance, alkali resistance, chemical erosion resistance, salt resistance, oil stain resistance, and safety and environmental protection. Moreover, as time goes by, the more fully the hardener reacts with the cement, the higher the flooring strength. It ensures environmental safety, durability, and resistance to pressure and wear. Concrete seal hardeners are suitable for areas that require a clean environment, with certain requirements for the dust content in the air, but are not suitable for areas that require surface coating materials. They are applicable to various ordinary concrete floors, wear-resistant floors, terrazzo floors, mortar, and old and new concrete surfaces. For example: factory, warehouse, freight distribution area, shopping center, parking lot, service station, hangar, and other floor areas.