• Is solar control PVB film really effective in laminated glass?

    Solar control PVB film is used to reduce the solar energy that transmitted the laminated glass.Same as normal PVB film ,solar control PVB film specifications, laminating workmanship is exactly same as normal PVB film. Solutia SG41/SH41 are solar control film produced by Eastman,L-SEC SCF301 and SCF 307 are products of Sekisui. Here we study the film and see if these solar control film is really effective when been applied in laminated glass. Firstly let’s see why Solutia develop solar control…

  • PVB/SGP interlayer shear modulus

    If two sheets of glass, lying on top of one another, are placed under load, they will start to bend (distort) independently. Dis-placement occurs between the two inner surfaces, which are in direct contact with each other. This is because one of the two surfaces is being stretched while the other is being compressed. If both sheets are laminated with an adhesive polymer interlayer,this must be able to internally compensatefor the distortional differences (i.e. absorbshear forces). For designers of architectural…

  • China New Glass skywalk breaks 8 world record!

    Recently a new glass skywalk was finished in China Guangdong province. The Glass bridge broke 8 world record: The world longest glass skywalk. The world widest glass skywalk. The world highest overhanging glass skywalk. The world longest overhanging glass skywalk. The world largest single piece glass area skywalk. The world largest round shape music falls. The tennis racket shape skywalk is about 160 floors high,368 meters long.The oval shape is 168 meters and become the biggest and most exciting structural glass tourist…

  • New China Glass bridge -SGP laminated glass projects

    Recently a new glass bridge made with laminated glass floor was finished. The bridge consist of 10 low iron tempered+1.52SGP +10 low iron tempered+1.52SGP+10 low iron laminated glass,let’s find the reason why SGP laminated glass can be used as floor which above 300M height. 1.Ultra Clear Glass- high light transmittance The light transmittance of low iron glass is over 90% ,with lower iron content in the glass,low iron glass color is extra clear ,even laminated with Dupont SGP interlayer,overall glass…

  • Glass processing-Laminated Glass processing

    2.1 Preparation and selection of glass The glass used for laminated glass is float glass, tempered glass, heat-treated glass, ceramic fritted glass, reflective glass, LOW-E glass, etc. Before processing, glass should be selected according to the internal control standard of laminated glass. Waves, stones, scratches, chipping, check the flatness of the glass for tempered glass; due to the unevenness of the glass, the glass and film cannot be completely bonded during the pressing process. 2.2 Glass cleaning In order to…

  • some misunderstanding about glass U value

    Misunderstanding 1: Thicker glass has much better U value than thin glass, laminated glass U value is significantly lower than that of the same thickness glass. For clear float glass, the increase of glass thickness does not increase the insulation performance. For example, thick 12mm clear glass and 5mm clear glass,the thickness and glass weight increased by 1.12 times. but its U value only decreased by 7.59%. The hydrogen-filled insulating glass made of 12mm glass and 5mm glass,U value decreased…

  • Laminated glass lifetime

    Laminated glass is a composite glass product in which two or more layers of organic polymer interlayer film are sandwiched between glass and processed to make the glass and the intermediate film adhere together for a long time. The laminated glass will be stuck to the film even if the glass is broken, which effectively prevents the occurrence of debris pitting and penetrating fall events, and ensures personal safety. The lifetime of laminated glass depends mainly on the material of…

  • What’s Dupont SGP Interlayer?

    SGP is also called SentryGlas Plus,which is one kind of high performance laminated materials developed by Dupont,Kuarary acquired Dupont in the end of 2014. SGP has very high strength,SGP laminated glass bearing capability is 2 times that of PVB laminated glass,but the bending deflection of SGP laminated is only 1/4 of PVB laminated glass under the same thickness and load condition. The tearing strength of SGP interlayer is 5 times higher than PVB film,even if the glass breaks,the SGP can…

  • Ultra clear PVB for ultra clear laminated glass

    Ultra clear glass,or low iron glass has higher transmittance compared with normal clear glass. It offers elegant crystal like appearance ,but when it was made into low iron PVB laminated glass,the PVB will usually become yellow color and affect the overall light transmittance and appearance especially when 4 or more layer PVB used. To solve this problem,ultra clear PVB was invented to meet the high transmittance -ultra clear requirement. Trosifol launched ultra clear PVB,as we can see in the picture,7.6mm(10 layers…

  • How to confirm the best PVB thickness for your project?

    Laminated glass is widely used in buildings,but confirming the best PVB thickness for your project to save the most costs and guarantee the glass quality is quite important. PVB thickness are usually 0.38mm,0.76mm,1.14mm,1.52mm,2.28mm.Here is a guideline -PVB interlayer thickness for different laminated glass-Annealed laminated glass,tempered laminated glass,heat strengthened laminated glass,curved laminated glass. Bulletproof glass,aquarium glass,and multi layer laminated glass are excluded. 1.Annealed laminated glass Glass Types Glass thickness PVB thickness L≤800mm L>800mm Annealed laminated glass ≤6mm 0.38 0.38 8mm 0.38…

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