Currently on the market often posing Corner There are three types of plastic glue

Strength aluminum alloy doors and sealing the corners of aluminum doors and windows as long as the use of special glue to set angle, but unfortunately most of the windows and doors factory and developers, as well as related administrative departments architectural design, supervision and other units did not really recognize the special Corner plastic windows and doors in improving the overall quality of the important role. Some assembly plant doors and windows do not use glue or wrongly Corner glass adhesive, structural adhesive, such as epoxy glue aluminum doors and windows dedicated Corner glue in use. Currently on the market often posing Corner adhesive glue into three categories:
1, glass, plastic, also known as silicone sealant; poor adhesion on aluminum, poor weather, easy to aging, low hardness, elasticity is too large, curing gel does not swell, can not make the corner yard stick closely with the cavity then become one.
2, structural adhesive for bonding aluminum poor, long curing time, products and more smell, does not swell when cured, can not produce high strength.
3, after curing epoxy adhesive inelastic, unable to adapt to the form of microseismic, easy crisp and broken, Corner after long-term strength is not enough, will produce cracking, dregs phenomenon.
Why do we have to use a dedicated advocate Corner gum? Because of special aluminum alloy doors and windows Corner glue has the following characteristics:
1, colloids are modified polyurethane-based adhesives, solvent-free, in line with environmental requirements.
2, initial curing time is short, about 10 minutes, will help improve production efficiency. Divided into single, two-component two kinds, more suitable for "Corner glue and corner connectors dispensing whole" two kinds of process requirements.
3, high hardness after curing, but not brittle, with low elasticity and excellent waterproof performance, so that angle code and section ductile adhesive wall connections, which make up, various parts of the corner of the window to reduce deformation, cracking conditions an effective solution to the problem of leakage corner windows and doors.
4, one-component adhesive glue is completely cured Corner, Corner profiles cavity with an effective part of the shear strength of the adhesive can be achieved 10.3N/MM2, component Corner Shear strength can reach 18N/MM2, greatly enhanced strength corner of the window. That is, ordinary 60 series of profiles of the shear strength can exceed Cutaway.
5, colloidal slightly foaming during the curing process, expanded, forming metal to metal between the elastic pad, the effective transmission of forces weaken, play a shock, the cushion effect.
6, weather resistance, the ability of -40 ° C +80 ° C temperature variation, white or translucent gel, the gel will not play in the short yellow. Corner two-component glue in 230 ° C high temperature tolerance of 30 minutes, suitable for powder coating and other post-processing needs.
7, with special cleaning agent with a small amount of excess glue is easy to clean,Fixed Length plastic seals  will not harm the surface profile of the coating and paint, environmental non-toxic.
The author believes that the current market a lot to promote the use of the German "Wei Shi" series Corner combination of gum and related ancillary products, aluminum doors and windows corner for structural reinforcement and sealed professionally designed to meet the requirements of various groups angle is aluminum door and window factory and the developers of the most sensible choice.