How much do you know about weatherproof sealant for curtain wall caulking? First of all, these two kinds of glue are basically used in decorative curtain wall construction projects. Structural adhesives are used for bonding different materials (glass and aluminum alloy profiles), while weather-resistant adhesives are used for sealing. Structural Sealant: the structural silicone bonding material used in curtain wall between plate and metal frame, plate and plate, plate and glass rib; Building sealant: A silicone sealing material used for caulking curtain walls Weather resistant sealant: 1. Suitable for weatherproof sealing of various curtain walls, especially recommended for weatherproof sealing of glass curtain wall, aluminum-plastic panel curtain wall and stone dry hanging; 2. Joint sealing between metal, glass, aluminum, ceramic tile, plexiglass and coated glass; 3. Joint sealing of concrete, cement, masonry, rock, marble, steel, wood, anodized aluminum and painted aluminum surfaces. Primer is not required in most cases. Silicone Structural Adhesive: 1. It is mainly used for structural or non-structural bonding assembly between metal and glass curtain walls. 2. It can connect the glass directly with the surface of the metal component to form a single assembly component, which meets the design requirements of the curtain wall of the fully hidden or semi-hidden frame. 3. Structural bonding and sealing of insulating glass. 
Weather-resistant sealant is mainly used for sealing and caulking between materials, and structural adhesive mainly plays a bonding role, the two are not used in the same place, weather-resistant sealant can also be said to be a universal adhesive, mainly with UV resistance, acid rain, snow and other extreme weather. In addition to the characteristics of weather-resistant sealant, silicone structural adhesive also has stronger bonding properties than weather-resistant sealant, mainly in tear strength, fracture elongation, tensile strength is relatively strong, tensile strength is mainly used in the place of stress. Insulating glass must rely on double seal to ensure its excellent performance, that is, the first seal using hot melt butyl sealant, mainly plays a sealing role; The second seal is completed by polysulfide or Silicone Sealant, which plays an auxiliary sealing role and maintains the stability of the insulating glass structure because of its excellent elasticity and good bonding performance to the glass, the two complement each other and are indispensable. Silicone, polysulfide and other elastic sealants rely on chemical reactions to achieve bonding purposes, and hot, molten butyl sealants mainly rely on butyl rubber polyisobutylene and other very low water permeability to achieve its sealing effect. Weather resistant sealant 1. Suitable for weatherproof sealing of various curtain walls, especially recommended for weatherproof sealing of glass curtain wall, aluminum-plastic panel curtain wall and stone dry hanging; 2. Joint sealing between metal, glass, aluminum, ceramic tile, plexiglass and coated glass; 3. Joint sealing of concrete, cement, masonry, rock, marble, steel, wood, anodized aluminum and painted aluminum surfaces. Primer is not required in most cases. Silicone structural adhesive 1. It is mainly used for structural or non-structural bonding assembly between metal and glass curtain walls. 2. It can connect the glass directly with the surface of the metal component to form a single assembly component, which meets the design requirements of the curtain wall of the fully hidden or semi-hidden frame. 3. Structural bonding and sealing of insulating glass. 
Weather-resistant sealant is mainly used for sealing and caulking between materials, and structural adhesive mainly plays a bonding role, the two are not used in the same place, weather-resistant sealant can also be said to be a universal adhesive, mainly with UV resistance, acid rain, snow and other extreme weather. In addition to the characteristics of weather-resistant sealant, silicone structural adhesive also has stronger bonding properties than weather-resistant sealant, mainly in tear strength, fracture elongation, tensile strength is relatively strong, tensile strength is mainly used in the place of stress. Structural adhesive is used for all kinds of curtain wall structural and non-structural assembly bonding, weatherproof adhesive is mainly waterproof sealing joints, structural adhesive modulus, hardness, strength and price are higher than the same grade of weatherproof adhesive, weatherproof adhesive displacement ability (can be elastic explanation) is higher than structural adhesive, all the two can not be mixed. The use of structural glue in the sealing place is high cost, and the second is not conducive to the displacement change of the joint. Where structural adhesive should be used, weather resistant adhesive must not be used. The difference between construction sealant and structural sealant and the quality requirements. Sealant mainly includes two types of building sealant and structural sealant. They have many performance requirements are similar, but the building sealant more emphasis on atmospheric change resistance, ultraviolet resistance, aging resistance and other performance; The structural sealant is more important is the strength, extensibility, adhesion and other mechanical properties requirements. Both should be selected according to the purpose of use. 
The main properties of building sealant: Aluminum alloy glass curtain wall construction sealant is mainly silicone sealant. Weather-resistant silicone sealant must be a single component neutral rubber, acid and alkaline rubber can not be used, otherwise it will give aluminum alloy and structural silicone sealing tape to adverse effects. The glue can react with water vapor in the air and gradually harden, therefore, contact with water should be avoided during storage to avoid deterioration, but the glue can adapt to sunlight, rain, snow and ice, ozone and high and low temperatures after curing. Silicone sealant has a variety of colors, light-colored sealant is weak in ultraviolet resistance, only suitable for indoor projects, aluminum alloy glass curtain wall caulking should be dark. According to the "Technical Specifications for Glass Curtain Wall Engineering" (JGJ102-96), the performance of weather-resistant silicone sealant should meet the relevant provisions. The main properties of structural sealant: The structural sealant for aluminum alloy glass curtain wall is mainly silicone sealant. Because it connects glass and glass, glass and aluminum, withstands wind, earthquake, weight and temperature changes, etc., plays an important structural role in the curtain wall, so it has higher requirements for its mechanical properties. As a structural sealant, it should have two functions: 1. Excellent sealing performance; 2. The bonded material has good tensile bonding properties.
We are from China rubber industry Tongchuang.
We specialize in the production of Neutral Silicone Sealant, Acid Silicone Sealant, structural sealant, silicone sealant, silicone sealant. We can produce sealants with warranties ranging from 1 to 25 years and pack them according to your requirements.
I hope we can cooperate happily in the near future. If you have any questions, please don't hesitate to contact me.
Shandong Tongchuang Rubber Industry Co.,Ltd.
