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What is the difference between silicone sealant and MS sealant?

With the growing popularity of environmentally friendly building materials, a variety of high-performance bonding sealants gradually becoming familiar with, as daily building materials commonly used in the silicone sealant and MS sealant, many friends can not help but question, what is the difference between the two? Today Truemei will help you popularise it.

Different ingredients

Silicone sealant is composed of 107 silicone oil, silicon dioxide and other components of the organic silicone sealant, with fast curing, no blistering, can be firmly bonded to the surface of non-porous materials, moisture and heat resistance, aging resistance, good storage stability and other characteristics. MS sealant is a polyurethane group containing silane-sealed polyether, non-toxic, odorless, VOC content is low, strong stability, strong compatibility, good uniformity and other advantages.

Different nature

Silicone sealant is a kind of ointment form, contact with moisture in the air will be cured into a kind of tough rubber solid material, its heat resistance is better, high and low temperature resistance performance is excellent, MS sealant is a kind of crosslinking polymer based on silane-terminated polyether, in the humidity and appropriate catalysts, the molecular chain undergoes a condensation reaction, releasing water and alcohols, so that the molecules are cured and crosslinked into elastomers, but due to the low bonding energy of polyether, the C-O bond is easy to break, so it is easy to break. However, due to the low bonding energy of polyether, the C-O bond is easy to break, and the heat resistance will be relatively poor.

Different viscosity

Silicone sealant has strong sealant force, high tensile strength, and at the same time has excellent properties such as weather resistance and shock resistance. MS sealant has better adhesion, can absorb and compensate for the dynamic load, and uniformly transfer the force.

Different uses

Silicone sealant can be divided into sealant, weathering sealant, structural sealant and other different types, generally used for doors and windows caulking sealing and interior decoration projects, hollow glass sealing, etc., structural silicone sealant can be applied to structural assembly, such as glass curtain wall, stone curtain wall, steel structure and other areas of sealant sealing, the scope of application is relatively wide. MS sealant on acrylic, ABS, organic glass and other engineering plastics and porous materials like concrete have good adhesion. MS sealant has good adhesion to acrylic, ABS, organic glass and other engineering plastics and concrete and other porous materials, widely used in electronic sealant, industrial MS sealant, building exterior sealant and a variety of sealants applicable to interior industrialized assembly.

In fact, whether it is silicone sealant or MS sealant, in different areas of the application of their strengths, has its own irreplaceable advantages. According to different application scenarios, different application needs, choose the more suitable sealant of the two.

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