-76 degree Centigrade.
Glass transition temperature of EVA depends significantly on the VA content. Decreasing VA contents result in a lower Tg. Usually Tg is about -20ºC, for higher VA content is -15ºC, for lower VA content is -40ºC.
1.Processing the Laminated Glass with EVA Film is different from the laminating with PVB Film.Difference in Oven: Laminating with PVB Film you need autoclave; laminating with EVA Film you need a simple oven: one-step laminating oven which is simpler and easier to process, and less cost to install the laminating oven.2. Install the ONE-Step of vacuum laminating OvenMake sure the silicone vacuuming bag is great, and the heating is even inside the oven.3. Combine the pre-laminated glassNormal the combination is :GLASS+EVA FILM+GLASSCut the extra EVA Film,Solid the pre-laminated glass with tape4. Put the pre-laminated glass inside silicone vacuum bagSeal the silicone vacuum bag.Start vacuum pump, double check the vacuuming is working well, and the value of vacuum pump reaches the requirement.5. Heating in two temperature stagesNormally, the heating will be set in two stage:Low temperature stage: 60 degrees C for 15 minutesHigh temperature stage:130 degrees C for 40 minutes6. Do NOT stop vacuuming after the laminated glass is cool as room temperatureDon't stop vacuuming until the laminated glass is cool to the room temperature, Or the bubbles will come out inside the laminated glass.If you want to know more, you go click the links:www.evafilms.com
It uses a water glass technology to keep it quiet.
EVA is used in solar modules to provide a moisture barrier (once laminated) and mechanical sport (keeping cells from sliding around under the glass).
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