Common structural sealants are the following: polysulfide sealant (PS), silicone sealant (SR), polyurethane sealant (PU), silane modified sealant (MS), etc. (The first three are ordinary, and the last one is what we call a new type of glue, or MS glue.)
In the traditional three kinds of sealant, PS adhesive low temperature curing speed is slow, easy to aging and hard, lack of durability, and has a strong irritating odor; PU adhesive has high strength, good resistance properties and medium corrosion resistance, but the curing speed is slow and the moisture and heat resistance and aging resistance are poor, and the long-term storage stability is poor. SR adhesive is quick to cure and has high bonding strength. However, it has poor construction performance and is easy to produce oily permeate to contaminate the structural surface.
Therefore, these three kinds of adhesives have more or less certain limitations for today's building reinforcement industry.
The MS adhesive is a new generation of building structural adhesive developed in recent years. After many tests and engineering applications, MS sealant has obvious advantages over traditional sealants in terms of chemical corrosion resistance, freeze-thaw cycle resistance, water immersion constant extension bonding performance or pollution resistance.
With the development of The Times, we have more and more high requirements for construction, land transfer costs increase, labor, machinery costs are also increasing. Assembly-type structure is in such an environment, arises at the historic moment. So as an important topic in the assembly structure, the design and material selection of sealing joints need to arouse our extensive attention. As the link between the assembled structure, the sealing joint can directly affect the waterproof performance of the assembled structure. Therefore, in the implementation of building industrialization, it is necessary to choose professional sealing materials.
As a popular new sealing material, MS glue needs to be known and used by us. Also let the sealant industry has also achieved its own rapid development.