Why does the glue of the aluminium curtain wall glue bubble? At the same time, do not bubble on the side glass, what is the reason?
When the air injection in silicone sealant generally refer to the site to complete the injection work, poor working conditions. The workers stood above the tripod glue injection, the uniformity of rubber injection is not easy to master, which is easy to glue in air. After sizing glue scraping the surface pressure, trimming smooth, adhesive seam inside the pad bar are mostly made of polyethylene foam obturator rods in the air inside the glue is not easy to overflow, glue dressing compressed air, will produce tension long outward, sealant seam is generally wide, small thickness, arch high displacement ability of weather resistant glue, hardness is low, no pre curing glue is very soft, compressed air pressure to hold long glue slowly bubbling. This phenomenon is more likely to occur on the application of weather resistant adhesive capable of lifting the arch + 25% or more adhesive displacement. Conversely, some weather resistant adhesives that allow less displacement are higher in hardness and thicker before the gel is solidified.
Brothers, there are several kinds of bubble gum, first to check is not part of the foam glue strip plug is not good, should be smooth, playing in a plastic bubble, not to leave the air, also can't have water, air water will bubble. In addition, glue when the temperature is very important no, when hot hit. Glue master experience play a decisive role, there is a great work in absolute don't let coolie, evenness and speed are very important.
