Select high-performance agents optimized for heavy industry processes, municipal wastewater, and environmental protection.
Established in 2011, Smedic Technology Co., Ltd. has evolved into a key national high-tech enterprise and comprehensive solution provider specializing in environmental protection agents. We integrate R&D, advanced chemical production, global distribution, and professional engineering-related technical services to provide custom ODM/OEM formulations to over 1,000 industrial clients worldwide.
Our products span crucial ecological and industrial segments, including municipal sewage treatment, industrial wastewater recycling, water supply treatment, mineral processing, and specialized oilfield chemicals. With an annual production capacity exceeding 1 million tons and a robust portfolio of over 80 environmental protection products, we are uniquely equipped to support demanding supply chains across 20+ provinces in China and key international export markets.
In modern industrial manufacturing, foam control is a critical factor determining operational efficiency, product quality, and system longevity. Oil-based defoamers represent one of the most versatile and robust classes of foam control chemistry available today. Formulated primarily with carrier oils—such as refined mineral oils, paraffinic oils, or synthetic vegetable oils—combined with active hydrophobic components like silica particles, metallic soaps, or synthetic waxes, these agents function by lowering the surface tension of foam bubbles, leading to their rapid coalescence and rupture.
To understand the performance of oil-based defoamers, one must look at the interfacial dynamics between the carrier oil and the foaming medium. The carrier oil acts as a delivery vehicle, dispersing the active hydrophobic particles throughout the aqueous or non-aqueous phase. Once the defoamer droplet reaches the air-water interface of the bubble, the hydrophobic particles act as localized stress points, displacing the surfactant molecules stabilizing the film. The film is thinned and ruptured under the influence of the spreading coefficient of the carrier oil, resulting in rapid collapse.
For applications such as pulp black liquor treatment, high shear mixing in paint production, or fast-flowing aeration basins in municipal wastewater plants, traditional silicones can sometimes undergo chemical breakdown or lead to surface defects (such as fish-eyes in coatings). In these contexts, specialized mineral oil-based formulations and polyether-modified defoamers offer unmatched compatibility, ensuring smooth operations without compromising the integrity of the end product.
Engineered to maintain surface tension reduction capacity under extreme turbulent flows and high temperatures, typical in industrial pulp mills and drilling operations.
Optimized formulation ensures zero surface defects in paints, inks, and surface coatings, bypassing the typical craters and pinholes caused by silicone alternatives.
Formulated to support green manufacturing targets, featuring low VOC profiles, biodegradeable mineral/vegetable oil options, and eco-toxicological safety profiles.
For global buyers looking to procure high-volume chemicals, the integration of advanced chemical engineering, massive scale, and streamlined logistics is paramount. Smedic operates multiple wholly-owned production bases located strategically in Hebei, Guizhou, and Shanxi. By establishing more than ten OEM partner factories and regional warehousing hubs in critical provinces like Shandong, Shanxi, Anhui, Guangxi, and Sichuan, we cover over 20 provinces across China with a total production capacity surpassing 1 million tons annually.
This massive domestic network allows us to secure raw materials at optimized costs, absorb localized supply chain shocks, and maintain stable export pricing for global enterprises. Smedic projects involve over 600 urban sewage treatment plants and over 1,000 industrial end-users, handling a total sewage capacity exceeding 20 million tons daily.
Unlike standard trading entities, Smedic's technological authority is anchored by our elite core technical team comprising academicians, professors, and senior engineers. We have built an R&D framework centered around "one academy, three research institutes, and five bases," establishing the Hebei Provincial Enterprise Technology Center and the Cangzhou Water Treatment Engineering Technology Research Center. Class A R&D recognition in Hebei Province, joint laboratories with Shandong University and Beijing University of Technology, and research partnerships with Tsinghua University, Peking University, and Tianjin University allow us to develop breakthrough chemical agents that fill critical domestic and international technological gaps.
Smedic is recognized as a National High-tech Enterprise and National Specialized, Refined, Unique and Innovative "Little Giant" Enterprise.
Our proprietary technologies, including the bio-enhanced denitrification carbon source and the deep multi-nuclear phosphorus removal agent, have been officially evaluated by the Science and Technology Department of Hebei Province as "internationally advanced". Furthermore, our independently developed "Inorganic-Organic Covalent Bond Flocculant and Its Advanced Water Purification Technology" won the prestigious 22nd China Patent Award and the First Prize for Technological Invention from the China Petrochemical Industry Association.
We have led the drafting of more than 10 national and industry standards (covering composite carbon sources, composite coagulants, sodium acetate, and bacterial agents), solidifying our standing as an authority in environmental protection chemicals. For four consecutive years, Smedic has been named the "Leading Brand of Advanced Wastewater Treatment Chemicals" by China Water Network and the E20 Environmental Platform, sustaining long-term strategic supply agreements with giant water conglomerates including Shouchuang, Yangtze River Ecological, BEWG, OriginWater, and China Water Environment Group.
How Smedic's custom formulation chemistry optimizes operations across diverse environments.
Black liquor generated during the pulping process contains high concentrations of organic lignin and wood-derived soaps, creating extremely stable foam. Standard defoamers collapse under the high temperatures (over 85°C) and alkaline conditions. Smedic's custom oil-based defoamers incorporate specialized emulsifiers and wax dispersions that survive thermal stress, maintaining active foam control inside brown stock washers and screening processes, maximizing pulp yield and chemical recovery efficiency.
In biological aeration basins, high concentrations of microbes, surfactants, and suspended solids lead to thick foam blankets that block oxygen transfer and pose overflow hazards. Smedic defoamers quickly disperse over the water surface without harming activated sludge bacteria or microfauna. Additionally, these defoamers are formulated to be fully compatible with downstream RO membrane scale inhibitors, eliminating the risk of membrane fouling and maximizing system throughput.
In paint manufacturing, high shear rates during pigment dispersion draw micro-air bubbles into the resin matrix. Left unchecked, these bubbles lead to cratering and pinholes on the dry paint film. Smedic’s mineral-oil based defoamers strike the perfect balance: they are insoluble enough in the coating system to target air bubbles but sufficiently compatible to prevent film defects. The result is a smooth coating surface with enhanced aesthetic and protective properties.
During drilling and cementing operations, foaming of the fluid can decrease density, disrupt hydrostatic pressure calculations, and cause structural weaknesses in cured cement. Smedic's high-density hydrocarbon-based formulations remain stable in high-salinity brines and deep-well environments, maintaining fluid density targets under immense pressure, protecting drilling equipment from cavitation and gas pockets.
Decades of innovation, R&D breakthroughs, and manufacturing capacity expansion.
Original catalog categories manufactured by Smedic Technology Co., Ltd.
Procuring raw chemical agents at an enterprise scale requires careful assessment of batch-to-batch stability, active substance concentration, storage shelf-life, and international certification profiles. Smedic's ODM oil-based defoamers are subjected to rigorous testing procedures comprising raw material incoming verification, in-process analytical chemistry monitoring, and final batch release inspection.
For custom ODM orders, Smedic matches global buyers with technical engineers who evaluate the physical and chemical constraints of the target system. Key variables evaluated include:
Smedic provides flexible commercial packaging solutions including 200L polyethylene drums, 1000L IBC totes, and bulk ISO tanks. Combined with our regional warehousing hubs close to major Chinese shipping ports, we guarantee low lead times and continuous supply lines to the Americas, Europe, Southeast Asia, and the Middle East.
Technical advice and answers regarding industrial foam control and procurement dynamics.
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