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MS521 · Elastic sealant

  • FOB Price : US $Enquiry
  • MOQ: 1000Pieces
  • Port : Any Port in China
  • Payment Terms : T/T,L/C
  • Production Capacity: 1,000,000 pcs/Year


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  • Basic Info
  • Company Profile
  • Packaging Details:Wooden box
  • Origin:China
  • Model Number:MS521
  • Brand Name:JIAOLAOER

Product Description

  • Substrate: MS polymer
    MS521 is a one-component sealant based on MS polymer, which belongs to moisture curing type. The curing speed of the sealant is related to the temperature and humidity of the environment. It will cure rapidly in high temperature or high humidity environment, while low temperature and low humidity will delay this process. The final cure time is also related to the thickness of sealant.  MS521 is a general-purpose sealant with low and medium modulus, high elongation and good resilience. It is suitable for various porous and non-porous materials. It has the outstanding characteristics of good adhesion, sandability and paintability, which is a high-performance general-purpose elastomeric sealant.


    1. Low odor, low VOC, free of isocyanic acid, PVC and organic solvents, safe to use.
    2. Resistant to UV, high temperature and severe cold weather, with a service life of more than 20 years.
    3. After curing, the shrinkage rate is very low, the shape is good with no depression, and the gluing place is smooth and bright.
    4. It can be used for the sealing of food storage and transportation vehicles, and meets the safety requirements of FDA food contact materials.
    5. Low temperature resistance, can maintain good elasticity and adhesion in the range of -40 ℃ ~ 90 ℃.

    MS521 is suitable for elastomeric sealing of joints of various substrates, including stainless steel, aluminum, copper, PVC, polyester, ceramics, wood and coatings, etc.. It is used for general sealing in the industrial manufacturing industry.

    Application areas:
    1. The elastomeric sealing of the joints in the boxes such as cars and containers, such as the elastomeric sealing of the butt joints and lap joints between the top, side and reinforcement plates of the box.
    2.  Waterproofing and sealing of various gaps in the construction of metal structures, such as fume hoods, ventilation pipes, warehouses and plank houses.
    3. Elastomeric sealing of welding seam and interface parts, anti-corrosion protection sealing of rivets, bolts, etc..

    Application tips:
    1. The surface to be bonded must be clean and dry without putty before bonding.
    2. The substrate that can ooze oil is not suitable for direct application of sealant.
    3. For the rusted or corroded metal surfaces (such as aluminum oxide oxidation, copper/iron oxidation rusty surface), in order to ensure the bonding effect, the rust floating on the surface needs to be worn away before gluing.
    4. Due to the differences in construction environment, construction methods and materials, in order to ensure the bonding performance, pre-test is required before use.
    5. The best sealant application temperature is +15℃~+40℃. When the temperature of the environment is low, the extrusion resistance increases, and the sealant can be used after it is warm.

    Those who use, store and transport the product must carefully read the "Chemical Safety Technical Instructions" and product labels in advance, and use the product according to laws and regulations. More product information can be obtained from our company or our distributors.

    Packaging specifications:
    570ml/ sausage type, 300ml/ cylinder type, 20L/barrel type

    Storage and transportation tips:
    Storage period: 12 months for soft packaging and 9 months for hard packaging in dry and cool environment.
    Recommended storage temperature: 10 ℃ ~ 25 ℃ (no more than 45 ℃)
    1 - Storage in a dry and low temperature environment will help extend the warranty period of the product.
    2 - Due to the different sealing performance of various packaging materials, some of which will shorten the storage period. The actual storage period shall be subject to the packaging identification.
    3 - Please refer to the material safety data sheet for storage and transportation operations and comply with the relevant national and local laws and regulations.

    Important tips:

    All the above product technical information, including the description on the product packaging, recommended information, etc., are based on our laboratory tests and inferences. We believe that these statements are correct and reliable, but we do not guarantee the accuracy and completeness of the data in any form. Due to the differences in application environments and  application methods, users should make pre-tests according to their own application methods and application conditions to ensure that the products are suitable for specific uses. In addition, we do not make any representations, hints or guarantees about the specific uses and commercial uses of the products. Any sales of this product shall be carried out in accordance with the company's sales terms, unless it is proved that the company has made major mistakes or committed fraud, the company shall not be liable for the above information or any other form of oral advice.

Photo Show

  • Shanghai Nanbing Environmental Protection Technology Co. , Ltd. is a high-tech enterprise focusing on R & D, production and sales of environmental protection glue.  Since its establishment in 2013, the company has successively researched and developed various products such as seam agent, adhesive for vacuum membrane press series, UV/visible light cured adhesive, self leveling sealant, jade adhesive, water based adhesive, electronic grade potting sealant, AB epoxy adhesive, modified silane sealant, etc.. 

    Once our products were introduced, they were quickly recognized and appreciated by all our customers.  In order to reduce the transportation cost of our customers and make our service more convenient and faster, we has successively opened sales offices and set up local distributors in many places.

    In line with the principle of ""honesty first"" and the business philosophy of ""quality makes excellence"", we will, as always, pursue scientific and technological innovation, provide customers with high value-added products and all-round technical services. We sincerely work with our customers to create a better future.
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Basic Information

  • Chemicals-Adhesive -Organic Adhesive
  • seam agent, adhesive for vacuum membrane press series, UV/visible light cured adhesive, self leveling sealant, jade adhesive, water based adhesive, electronic grade potting sealant, AB epoxy adhesive, modified silane sealant, etc..
  • China, Africa, Southeast Asia, etc.
  •  YES
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