The full name of MS Sealant is modified silane polyether sealant .It is a new generation of construction sealant developed after polysulfide sealant, silicone sealant and polyurethane sealant. Because it does not contain formaldehyde, isocyanate, and solvent, it is environmentally friendly, and suitable for most building substrates.

At the same time, it also has good working ability, adhesion, durability and weather resistance, especially non-polluting and painting ability. It has a wide range of applications in architectural decoration, mainly used in the bonding of architectural engineering and decoration , Caulking, jointing, sealing and waterproofing, reinforcement and other fields.

In recent years, as the people's understanding of the advantages of MS Sealant continued to accepted, its application in industrial fields such as refrigerated trucks, containers, and elevators has also continued to expand.

Features of MS Sealant

The domestic construction sealant is currently mainly silicone sealant. Compared with it, MS sealant has more and more prominent advantages:

1. Excellent performance

In the production of MS sealant, there is no solvent addition, no formaldehyde, toluene, xylene and other harmful substances released to the human body. It is non-toxic, odorless, and has the lowest VOC content. The VOC release is far lower than the national standard. It is environmentally friendly and green. It is the most environmentally friendly construction sealant product. .

2. Larger bonding range and strength

Due to the low surface energy and high permeability of the base polymer (silyl-terminated polyether), it has good wetting ability on most inorganic, metal and plastic substrates. Simple handling of the substrate can produce good adhesion. MS sealant is not only suitable for most construction materials, but also has good adhesion to engineering plastics such as acrylic, ABS, plexiglass, and porous materials such as concrete. It has more and more extensive applications than silicone sealant and can adapt to Most building substrates do not require primer bonding.

3. Strong stability

The silane-modified polyether sealant will form a Si—O—Si bond as the cross-linking point after moisture curing at room temperature and a network structure connected by flexible polyether long chains. This system not only has excellent weather resistance, water resistance, and Aging and durability, and can effectively inhibit and avoid the surface cracks of the sealant after long-term use. Directly exposed to use, meet the double standard of Japan JS and national standard (9030), and have the heat and cold resistance of -30℃～90℃. In addition, MS sealant will not escape oily molecules to contaminate the surface and joints of building materials, and maintain the beautiful appearance of the building for a long time. Silicone sealant will precipitate small molecules, which together with rain and dust will form difficult-to-remove stains on the appearance of the building.

4. Strong compatibility

The surface of ordinary silicone sealant cannot be painted and colored, but can only be adjusted to the user's desired color according to user needs; while MS sealant is compatible with most paints and coatings, and can be directly painted on the surface of the colloid, which can be perfectly realized The uniformity of the exterior wall colors keeps the building beautiful. However, the traditional silicone rubber will not be able to maintain the finish due to the shrinkage of the surface tension.

5. Non-polluting

Because it does not add any volatile solvents or easy-to-migrate plasticizers, it does not contain silicone oil or silicone resin, and will not absorb dust in the air to cause pollution.

6. Excellent genes

The main chain of MS Polymer (MS polymer) is a flexible segment of polyoxypropylene ether. It adopts special molecular design and polymerization process. The molecular weight is between 12000-15000. It can be regarded as very uniform in organic chemistry, stable performance, and silicon. The advantages and advantages of ketone sealant and polyurethane sealant.

7. Mechanical properties

The molecular structure and cross-linking characteristics of MS Polymer determine the performance and quality of modified silicone sealant (MS sealant). The modulus is low, and it has suitable stress relaxation ability and high elastic recovery rate. It can follow the thermal expansion and contraction of the structure. Joint expansion and shear deformation caused by environmental influences such as wind load, earthquake action, and uneven settlement.