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Views: 0 Author: Site Editor Publish Time: 2025-04-12 Origin: Site
MS polymer (silyl-modified polyether sealant, abbreviated as MS sealant)is a high-performance sealing material that is increasingly being used in the construction industry due to its excellent overall performance and environmental characteristics. The following discussion will elaborate on four aspects: core performance advantages, expanded application scenarios, technological innovations, and market trends.
Outstanding Adhesion: MS sealant exhibits excellent adhesion to various construction materials, including concrete, masonry, metal, and plastic. Its base polymer (silyl-terminated polyether) features low surface energy and high permeability, allowing it to wet most substrate surfaces and form strong bonds. For example, in glass curtain wall installations, MS sealant can replace traditional silicone sealants, adhering directly between aluminum frames and glass without the need for a primer.
Weather esistance: After wet curing, MS sealant forms an Si-O-Si crosslinked structure, which provides excellent resistance to UV rays, extreme temperatures, and humidity. Experiments show that silyl-terminated polyether waterproof coatings can last over 30 years in exposed environments, far exceeding the lifespan of ordinary acrylic or polyurethane coatings.
Chemical Resistance: It has good resistance to corrosive media such as acid rain and salt spray, making it suitable for construction sealing in coastal or highly polluted areas.
Environmental Friendliness and Sustainability: MS sealant does not contain harmful substances such as isocyanates or benzene, and its VOC (volatile organic compound) emissions are extremely low, meeting environmental certification standards such as LEED and green building materials. Its paintability further reduces material waste during building renovations and supports sustainable building practices.
Exterior Walls and Joints: MS sealant is used for joint sealing in concrete walls and stone curtain walls, preventing cracking and water infiltration due to thermal expansion and contraction.
Underground Works: In humid environments such as basements and tunnels, the water resistance of MS sealant ensures long-term sealing effectiveness.
Waterproof Coatings: Silyl-terminated polyether resin-based waterproof coatings have been applied in infrastructures like bridges and reservoirs, with flexibility and weather resistance significantly surpassing traditional materials.
Glass Curtain Walls: The high bonding strength of MS sealant (tensile strength ≥ 0.6 MPa) can withstand the weight of glass and wind pressure, while also accommodating interlayer displacement in curtain walls.
Window Installation: Used for sealing between aluminum alloy windows and walls, it provides sound insulation and thermal insulation functions.
Prefabricated Concrete Buildings: MS sealant serves as a sealing material for joints in prefabricated components, meeting the efficiency and environmental requirements of modular construction.
Building-Integrated Photovoltaics (BIPV): It is used for bonding and sealing photovoltaic modules to roofs, with weather resistance ensuring a system lifespan exceeding 25 years.
Mold Prevention in Kitchens and Bathrooms: MS sealant's long-lasting mold resistance (based on inorganic nanomaterials) inhibits mold growth in humid environments, suitable for kitchen countertops and bathroom joints.
Flooring and Wall Applications: As an elastic adhesive, it is suitable for laying wooden floors, PVC floors, and decorative panels.
Functional Enhancements: By adding nano-fillers (such as fumed silica) to improve the thixotropic properties of the sealant, optimizing construction performance; developing fire-retardant MS sealants to meet fire safety requirements for high-rise buildings.
Rapid Curing Technology: Employing new catalysts (such as dibutyltin dilaurate) to shorten curing times and enhance construction efficiency.
Global Market: In 2023, the global MS sealant market reached 160 billion yuan, with a year-on-year growth of 5.2%. Japan's market penetration reached 45%, while Europe and the U.S. were at 30% and 23%, respectively. China's share is only 2%, but the annual growth rate exceeds 15%. Environmental policies are driving upgrades in the building sealant market, with MS sealant expected to replace traditional silicone sealants (which have high VOC emissions and contribute to pollution) as the mainstream choice.
Personal Protection: During construction, workers should wear solvent-resistant gloves, goggles, and respirators to avoid direct contact with skin and eyes.
Environmental Control: Recommended construction temperature is between 5-40°C and humidity ≤ 80% to ensure effective curing.
Adhesion Strength: Tested according to GB/T 23261-2009, tensile adhesion strength must be ≥ 0.4 MPa.
Weather Resistance Testing: Accelerated aging tests (using xenon lamp irradiation) validate the color retention and adhesion maintenance of the sealant.
With the advancement of industrialization and intelligentization in construction, MS polymer will extend towards higher performance (such as self-healing and conductive functions) and broader application areas (such as 3D-printed buildings and smart glass). Its dual attributes of "green + high performance" will help the construction industry achieve carbon neutrality goals and promote the deep integration of materials science and building technology.
