& nbsp; & nbsp;& nbsp; The difference between structural adhesive and weather resistant adhesive is that structural adhesive is generally used for glass installation, with ultra-high bonding strength (firmly bonding with window frames, glass, etc. to ensure safety), relatively high elastic modulus, and generally two-component (can control shorter curing time); Weathering adhesive is generally a single component, which is more convenient to use and is generally used for sealing and waterproofing joints. It has a low elastic modulus (allowing for a larger displacement of the joint) and can bond well with various materials (but with much lower bonding strength than structural adhesive).
  & nbsp; & nbsp;& nbsp; The weather resistance of structural adhesive is as good as or even better than that of weather resistant adhesive. As the weather resistance of structural adhesive is related to safety, if it ages quickly, the glass will fall off severely. Therefore, the current structural adhesive is basically silicone (silicone adhesive), which will not age in the natural environment. Weathering glue does not affect safety, and the main failure result is usually water and air leakage. Therefore, there are many types of materials for weathering glue, including polyurethane, polysulfide, acrylic, etc., but silicone is still the best in terms of weather resistance.
  & nbsp; & nbsp;& nbsp; Weather resistant sealant< br />
  & nbsp; & nbsp;& nbsp; 1. Suitable for weather resistant sealing of various curtain walls, especially recommended for glass curtain walls, aluminum-plastic panel curtain walls, and stone dry hanging weather resistant sealing& nbsp;< br />
  & nbsp; & nbsp;& nbsp; 2. Sealing of joints between metal, glass, aluminum, ceramic tiles, organic glass, and coated glass& nbsp;< br />
  & nbsp; & nbsp;& nbsp; 3. Sealing of joints on surfaces of concrete, cement, masonry, rock, marble, steel, wood, anodized aluminum, and painted aluminum. In most cases, primer is not required& nbsp;
  & nbsp; & nbsp;& nbsp; Silicone structural adhesive< br />
  & nbsp; & nbsp;& nbsp; 1. Mainly used for structural or non structural bonding installation between metal and glass in glass curtain walls& nbsp;< br />
  & nbsp; & nbsp;& nbsp; 2. It can directly connect glass with the surface of metal components to form a single installation component, meeting the requirements of curtain wall planning for fully concealed or semi concealed frames& nbsp;< br />
  & nbsp; & nbsp;& nbsp; 3. Structural bonding and sealing of insulating glass& nbsp;
  & nbsp; & nbsp;& nbsp; Weathering sealant is mainly used for sealing and filling gaps between materials& nbsp; And structural adhesive mainly plays a bonding role& nbsp; The two are not used locally. Weather resistant sealant can also be said to be a universal adhesive, mainly due to its resistance to extreme weather conditions such as ultraviolet radiation, acid rain, and snow. Silicone structural adhesive not only has the characteristics of weather resistant sealant, but also has stronger bonding function than weather resistant sealant& nbsp; Mainly manifested in strong tear resistance, elongation at break, and tensile strength, with tensile strength mainly used in pre stressed areas< br />


  & nbsp; & nbsp;& nbsp; Structural adhesive is used for structural and non structural installation bonding of various curtain walls, while weather resistant adhesive is mainly used for waterproof sealing of joints. The modulus, hardness, strength, and price of structural adhesive are higher than those of weather resistant adhesive of the same grade& nbsp; The displacement of weather resistant adhesive (which can be explained as elastic) is higher than that of structural adhesive< br />
Both cannot be mixed& nbsp; The use of structural adhesive in sealed areas is costly and not conducive to changing the displacement of joints& nbsp; In places where structural adhesive should be used, weather resistant adhesive must not be used.