Specific method for the construction of glue joints of glass curtain wall 20

1. Before construction, it is necessary to clean up the water, grease, dust and other stains on the surface. Of course, you can also use detergent to clean the surface, and then use a dry rag to remove the residue to make the surface clean and dry.

2. Cover the surface near the interface with plastic tape to ensure the integrity of the working lines.

3. Open the nozzle of the hose, install the nozzle tube, and then cut it at a 45° angle.

4. Install the glue gun and extrude the glue at a 45° angle to ensure that the glue is in close contact with the surface of the substrate. If the gap width is greater than 15 mm, repeat the application several times. When finished, trim the surface with a knife, remove the excess glue, then remove the tape, and then use a damp cloth to remove the excess glue.

5. After the construction, the surface vulcanization of the glass glue will occur after 10 minutes, and the complete vulcanization will take 24 hours or more. Liquid collapse.

6. Do not walk on the cracked key before the glass glue is still dry and the source is not dry, so as not to affect the curing of the glass glue.

Gluing method: clean the glass of debris between the gaps, paste the edge of the glass with a foam stick in the gaps of the masking paper, and then inject glue, squeegee, and tear off the masking paper.

Glass curtain wall refers to the building envelope or decorative structure that can have a certain displacement capacity relative to the main structure and does not share the role of the main structure by the supporting structure system. The walls are available in single and double glazing.

In the gluing of glass curtain walls, the causes of air bubbles:

1. There is a foam rod in the glue position, and the foam rod is inadvertently punctured when the foam rod is installed.

Second, there is kerosene in the position of gluing, in a sense, bubbles will appear after gluing in this case.

3. The glue itself is not pure, and there are solvents such as kerosene in it, which may lead to bubbles in the later stage.

Clean up the debris between the glass crevices, paste masking paper on the edge of the glass, fill the gaps with foam sticks, inject glue, squeegee glue, tear off the masking paper, and call it a day.

Solid glue is used and injected into it.

What you are asking is where the glass curtain wall is glued?

1. Can structural adhesive be used to crack windows?

The answer is yes. Structural adhesives can provide very high adhesive strength, and have a wide range of applications for home repair, construction projects, etc., therefore, can also be used for window joint repair. But there are a few things to be aware of:

1.It is necessary to choose the right structural adhesive. Different glues have different uses, and the structural adhesive is divided into silicone structure glue and polyurethane structural adhesive, and the suitable glue is selected according to the actual situation.

2.It needs to be cleaned. Before repairing window joints with structural adhesive, the gaps need to be cleaned to ensure that the surface is smooth so that the glue can be adequately bonded.

3.Immersion in water needs to be avoided. Structural adhesives have a certain sensitivity to water, and care needs to be taken to avoid direct contact with water during construction.

There are two main types of sealants: building sealants (weathering adhesives) and structural sealants (structural adhesives).

The main properties of building sealant (weather-resistant adhesive) are mainly silicone sealants for aluminum alloy glass curtain wall. Weather-resistant silicone sealant must be a one-component neutral adhesive, acid and alkaline adhesive can not be used, otherwise it will bring adverse effects to aluminum alloy and structural silicone sealant. 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, ice and snow, ozone and high and low temperatures after curing.

Silicone sealant has a variety of colors, light-colored sealant has weak UV resistance, only suitable for indoor engineering, aluminum alloy glass curtain wall caulking should be dark-colored. According to the "Technical Code for Glass Curtain Wall Engineering" (JGJ102-96), the performance of weather-resistant silicone sealant should meet the provisions of Table 1.

The main properties of structural sealants (structural adhesives) are mainly silicone sealants for aluminum alloy glass curtain walls. Because it connects glass and glass, glass and aluminum, bears wind, action, weight and temperature changes, etc., and plays an important structural role in the curtain wall, it has high requirements for its mechanical properties. As a structural sealant, it should have two functions:

1) Excellent sealing performance; (2) It has good tensile adhesion performance with the material to be bonded.

MS modified silane glue can be used instead, all properties are excellent, curtain wall sealing and waterproofing, high and low temperature construction, with good thixotropy and extrusion, environmental requirements are not harsh, in the weather of -50 to 150, the performance will not change.

Strong weather resistance, the colloid itself will not produce bubbles, and can resist rain, snow, and ultraviolet rays. Long-term exposure to the harsh environment of the outdoors can effectively inhibit and avoid cracking, breakage, yellowing, mildew and degumming of the sealant.

Moreover, Greenridge MS glue has zero formaldehyde, zero isocyanate, solvent-free, non-toxic and tasteless, and the VOC emission is far lower than the national standard, which does not damage the environmental performance of the substrate. It has a wide range of adhesion to substrates, and most inorganic, metal, wood, concrete, ceramics, glass, stone, etc. have good adhesion properties.

Good elastic deformation ability: high elastic deformation ability can ensure that the adhesive surface can adapt to various external tensile and compression deformation, absorb and compensate dynamic loads, evenly transmit the force, prevent premature fatigue of the material, and always maintain effective sealing and bonding.