Who is Sinochem Dongda? We are a comprehensive supplier of high-end polyether polyols.
Within the polyurethane industry, polyether polyols and their premixed formulations are commonly referred to as the "white component". Dongda “White Tech” stands for innovative raw material technology centered on high performance, green low-carbon development, cleanliness and safety — the technological code that makes life safer, purer and more durable.
As technology advances, polyether polyols have been deeply integrated into all areas of production and daily life. Starting today, Charming Sinochem Dongda launches the column Dongda “White Tech”. We will take you to explore diversified application scenarios of polyether polyols, interpret core product characteristics, discover the technological power hidden around us, and experience how innovation empowers a better life.
Do you know that the service life of a building lies within its joints?
The exterior walls of high-rise residential buildings, seams between precast wall panels at prefabricated construction sites, or silicone sealants in kitchens and bathrooms at home… Dark stains, cracking and water leakage almost always start from these tiny gaps. To a large extent, the safety, durability and even appearance of a building depend on whether the sealing of these joints can stand the test of time.
How can we solve this challenge?
The answer lies in Sinochem Dongda’s “White Tech”.
Sinochem Dongda has launched a series of ultra-high molecular weight polyether polyols represented by DL-18000D. These products are used for synthesizing high-end MS polymers, delivering more eco-friendly and stable sealing solutions for prefabricated buildings. They achieve all-round improvements in waterproof performance, weather resistance, environmental friendliness and import substitution. Every joint can be sealed more reliably, enabling every building to enjoy longer service life. Let’s take an in-depth look.
Sinochem Dongda raw materials for MS polymer sealants feature outstanding environmental performance. Containing no solvents or formaldehyde, they are non-toxic and odorless with extremely low VOC (Volatile Organic Compound) emissions. Green and low-carbon performance is realized right at the raw material source, resulting in barely any pungent odor. They are especially suitable for venues with strict indoor air quality requirements, such as hospitals, schools and fully furnished residential buildings.
The products deliver powerful adhesion to metal, stone, glass, plastic, wood and more. No primer treatment is required for most applications for direct bonding. In addition, water-based paint can be applied for color matching to blend seamlessly with decorative surfaces without unsightly sealant marks, combining attractive appearance and high efficiency.
Excellent resistance to ultraviolet radiation, ozone, extreme temperatures and aging enables the material to maintain good elasticity during long-term service. It will not harden, crack or pulverize rapidly under sun and rain exposure. Meanwhile, favorable stress relaxation capacity effectively accommodates thermal expansion, contraction and structural vibration of joints, preventing premature material fatigue failure and realizing reliable long-cycle sealing.
Represented by DL-18000D, Sinochem Dongda’s polyether polyols for MS polymers boast prominent strengths: high reactivity, high transparency, low viscosity, uniform molecular weight distribution, high tensile strength and superior mechanical properties. MS sealants produced with these materials feature strong bonding strength and excellent elongation performance. Their comprehensive properties have reached internationally advanced levels, effectively breaking foreign monopolies on raw materials and achieving dependable import substitution.
If you think its application is limited only to buildings, you are underestimating its potential.
Benefiting from the combined advantages of environmental friendliness, high elasticity, paintability, weather resistance, aging resistance and broad adhesion spectrum, MS polymer sealants are widely adopted in architectural decoration, transportation, electronic appliances, industrial machinery and many other sectors.
You may come into contact with them every day in automobiles: sealing for body welding seams, vehicle doors, rooftops and luggage compartments, as well as waterproofing for radars, sensors and lamps. They are also applied to fix and reduce noise at splicing gaps and door seams of elevator cabins.
In the electronics industry, they are used for fixing circuit boards, chips and radiators, narrow-bezel sealing for mobile phone and home appliance housings, and even high-temperature-resistant sealing inside ovens and microwave ovens.
Beyond household scenarios, they are ubiquitous in industrial fields: acid and alkali-resistant sealing for pumps, valves, pipeline flanges and chemical equipment; bonding for air-conditioning ducts and filter frames. They can even be used for nail-free mounting of photo frames at home, joints of sports equipment and sealing of trash cans.
Sinochem Dongda “White Tech” empowers every moment of life.
From invisible sealing protection for buildings, comfort upgrades for daily consumer goods, to core support for high-end manufacturing, Sinochem Dongda always takes technological innovation as the core, adheres to the pursuit of premium quality, and builds a broad application portfolio. We forge ahead with professionalism and craftsmanship.
Which “White Tech” innovation would you like to learn about next? Stay tuned to Charming Sinochem Dongda, as we continue to decipher polyether technology for you.
If you are interested in the above-mentioned products or services, please contact us: Sungang06@sinochem.com
