ProcessingProcessingProcessingProcessing NotesNotesNotesNotes ofofofof DryDryDryDry MeltMeltMeltMelt adhesiveadhesiveadhesiveadhesive EVAEVAEVAEVA InterlayerInterlayerInterlayerInterlayer FilmFilmFilmFilm

EVA interlayer film is the main row material for producing safety laminated glass, however, thequality of the Dry Melt adhesive EVA Interlayer Film is not the only factor for producing standardsafety laminated glass, there are many other factors in close relations with the successfulproduction, such as equipment(laminating stove), producing technique, glass and auxiliarymaterials, environment and weather condition, worker's operation skill and responsibility.Therefore, in order to produce strengthened glass and safety laminated glass, operator needs toanalyse comprehensive factors and master comprehensive producing skill.The following operation instruction is concerning the actual application of Dry Melt adhesiveEVA Interlayer Film for safety laminated glass:

ProcessingProcessingProcessingProcessing NotesNotesNotesNotes ofofofof DryDryDryDry MeltMeltMeltMelt adhesiveadhesiveadhesiveadhesive EVAEVAEVAEVA InterlayerInterlayerInterlayerInterlayer FilmFilmFilmFilm（2-12-12-12-1）1)Because of the particularity and irresistibility during Dry Melt adhesive EVA Interlayer Filmproduction, consumers are suggested to test a small glass (bigger than 0.5 ㎡） to confirm thequality and color of Dry Melt adhesive EVA Interlayer Film before using a batch of Dry Meltadhesive EVA Interlayer Films. {All rights reserved by China Ethylene-vinyl acetate EVAInterlayer Film Manufacturer for Safety Architectural Laminated Glass, Smart Glass, PrivacyGlass, LED Glass etc.(cnc@cncnext.com / www.cncnext.com / benext77@gmail.com /benext77@hotmail.com) (eva@evafilms.com / www.evafilms.com ) }Only the quality and colorof Dry Melt adhesive EVA Interlayer Film is confirmed can the mass production of laminatedglass proceeds, otherwise the massive finished products will be scraped due to its inconformitywith the sample. If a large quantity of Dry Melt adhesive EVA Interlayer Films of the same kind,especially colored Dry Melt adhesive EVA Interlayer Films, are used in a batch of laminated glass,the finished laminated glass should be frequently compared and examined during the production,so as to identify the error in quality, especially in color, and prevent mass scrapping and loss.2)In raining days or with workshop humidity over 65%, the Dry Melt adhesive EVA Interlayer Film,spun silk, advertisement materials and glass will be affected by moisture that will severelyinfluence the adhesion of Dry Melt adhesive EVA Interlayer Film, so before producing laminatedglass, do remember to double-check the pre-laminated glass which has been cleaned and wipedbefore, and make sure there's no any water stain and vapour on the glass(use dryer if possible).Besides, the laminating materials should also be dried, otherwise the finished laminated(strengthened) glass will have problem of bubble or de-lamination. Therefore, customers areadvised not to produce the laminated glass in raining days with heavy moisture.3)It is inevitable that the Dry Melt adhesive EVA Interlayer Films may get slight contaminationduring the production or use, for instance, some tiny foreign substance on the surface of the DryMelt adhesive EVA Interlayer Film. So we suggest customers install a daylight lamp under thetable so as to check clearly whether there is foreign substance, stain or other prints on the surfaceof the Dry Melt adhesive EVA Interlayer Film. If some foreign substance or black stain is found

on the Dry Melt adhesive EVA Interlayer Film, it should be picked out with knifepoint. {Want tolearn more, please contact:=China Ethylene-vinyl acetate EVA Interlayer Film Manufacturer forSafety Architectural Laminated Glass.=China Dry Melt adhesive EVA Interlayer Film for SmartGlass, Privacy Glass, LED Glass etc.=China Solar Dry Melt adhesive EVA Interlayer Film forSolar Panel Encapsulation. =China Switchable Film for Privacy Glass, Smart Glass.=cnc@cncnext.com / www.cncnext.com / benext77@gmail.com / benext77@hotmail.com /eva@evafilms.com / www.evafilms.com } If the hole on the clear Dry Melt adhesive EVAInterlayer Film is smaller than half rice grain, the Dry Melt adhesive EVA Interlayer Film will stillbe used without problem. But if a lot of foreign substance or black stains are found on the surfaceof the Dry Melt adhesive EVA Interlayer Film, customers should stop using the film and informour company immediately to handle the problem. Blind production will surely bring aboutunnecessary waste to both the seller and the buyer.4)It is important to check clearly the surface of the intermediate materials used in producing art glassor strengthened glass, such as non-woven cotton, chartaceous or plastic printing-work, naturalfibric, etc, because the surface of some intermediate materials may have been coated or printedbefore, which may result in adverse chemical reaction with Dry Melt adhesive EVA InterlayerFilm and consequently degrade the adhesion capacity of Dry Melt adhesive EVA Interlayer Film.That means not all the materials are suitable for lamination, and it's very necessary to test DryMelt adhesive EVA Interlayer Film quality and effective time before use. Don't go to massproduction blindly. Meanwhile, it is suggested that those materials should get dried before put intouse so as to remove the moisture within them. It has been proved that the laminated glassproduced with moisture intermediate materials will probably get bubble or de-lamination afterbeing stored for a period of time.ProcessingProcessingProcessingProcessing NotesNotesNotesNotes ofofofof DryDryDryDry MeltMeltMeltMelt adhesiveadhesiveadhesiveadhesive EVAEVAEVAEVA InterlayerInterlayerInterlayerInterlayer FilmFilmFilmFilm（2-22-22-22-2）5)The laminated glass is processed and produced under the simultaneous work of high temperatureand pressure, so under certain temperature, the solid Dry Melt adhesive EVA Interlayer Film willturn to fused substance and may easily outflow the edge of the glass under pressure. Because theedge is under the biggest pressure, the liquid film outflows the glass most easily and thus will bethinner than inside. After the Dry Melt adhesive EVA Interlayer Film get cooling and contractive,it's probable that there is some bubble or de-lamination around the glass. Considering this, wesuggest customers use some material to block the glass when laminating the glass, and thematerial used to block the outflow of Dry Melt adhesive EVA Interlayer Film should be higherthan the glass thickness. In this way, {Want to learn more, please contact:=China Ethylene-vinylacetate EVA Interlayer Film Manufacturer for Safety Architectural Laminated Glass.=China DryMelt adhesive EVA Interlayer Film for Smart Glass, Privacy Glass, LED Glass etc.=China SolarDry Melt adhesive EVA Interlayer Film for Solar Panel Encapsulation. =China Switchable Filmfor Privacy Glass, Smart Glass.= cnc@cncnext.com / www.cncnext.com / benext77@gmail.com /benext77@hotmail.com / eva@evafilms.com / www.evafilms.com } it will reduce the highpressure caused by the vacuum negative pressure on the edge of glass, and thus reduce the outflowof liquid film.6)It is unsuitable to process different kinds of glass or Dry Melt adhesive EVA Interlayer Film in the

same stove with the same technique, otherwise it's difficult to guarantee the quality. Normally, theprocessing temperature for colored Dry Melt adhesive EVA Interlayer Film is a little higher thanthat for normal clear Dry Melt adhesive EVA Interlayer Film; the processing temperature for thickDry Melt adhesive EVA Interlayer Film or glass is also a little higher than that for thin Dry Meltadhesive EVA Interlayer Film or glass; the processing temperature for laminated glass withinterlayer silk is slightly higher than that for laminated glass with EVA interlayer film. If thetemperature is not suitable to be too high suddenly, we can extend the heat preserving time so as toincrease temperature gradually. The appropriate processing period is based on the structure of thestove and the heating power. Customers may know more abut this after more practice. We suggestcustomers contact us for more information if customers are not sure about how to produce newlaminated products or use new Dry Melt adhesive EVA Interlayer Films, in this way, theunnecessary loss or waste will be reduced.7)The cooling time for the finished laminated glass also plays an important roll. Theoretically, thefaster the processed transparent Dry Melt adhesive EVA Interlayer Film cool down, the better itstransparency will be. But if the finished laminated glass encounters a big range of temperatureafter coming out of the stove, then it's probable that the laminated glass will get split or bubblearound the glass. Therefore, if the laminated glass is produced in summer with high temperature,it's suggested to use a big power fan to decrease the temperature; and in winter with lowtemperature, {Want to learn more, please contact:=China Ethylene-vinyl acetate EVA InterlayerFilm Manufacturer for Safety Architectural Laminated Glass.=China Dry Melt adhesive EVAInterlayer Film for Smart Glass, Privacy Glass, LED Glass etc.=China Solar Dry Melt adhesiveEVA Interlayer Film for Solar Panel Encapsulation. =China Switchable Film for Privacy Glass,Smart Glass.= cnc@cncnext.com / www.cncnext.com / benext77@gmail.com /benext77@hotmail.com / eva@evafilms.com / www.evafilms.com } there's big differencebetween the temperature inside and outside the stove, so it's suggested to extend the naturalcooling time of laminated glass in vacuum condition both inside and outside the stove. It'sappropriate to take out the glass when the temperature declines constantly to about 40℃.8)It is inappropriate to polish the edge of the finished laminated glass immediately, otherwise itwill degrade the adhesion capacity and lead to de-lamination of the edge. We suggest customerspolish the edge of the laminated glass after 24 hours when the glass lamination was finished, andcut off the overflown film before polishing the edge. {Sponsored by Silicone Vacuuming Bag/Sheet for EVA Glass Laminating Machine / Solar EVA Photovoltaic Panel EncapsulationsChina Ucolin Manufacturer uc@ucolin.com / www.ucolin.com/umewe360@gmail.com/umewe360@hotmail.com} For the guarantee of good adhesion of theDry Melt adhesive EVA Interlayer Film and to prevent water seepage and bubble problem, it's alsoworkable to polish the edge of the glass before lamination. It's suggested to use fine grindingwheel to polish the edge again and again, but not use coarse grinding wheel which will easilyproduce slight glass crack and thus impair the glass edge. As to the crude fibre and otherintermediate materials that can easily absorb water, it's suggested to polish the edge of the glassbefore lamination, because the exposing crude fibre will probably absorb moisture duringpolishing the edge, and thus will lead to de-lamination later.All rights reserved by:

China Ethylene-vinyl acetate EVA Interlayer Film Manufacturer for Safety ArchitecturalLaminated Glass.China EVA Film for Smart Glass, Privacy Glass, LED Glass etc.China SolarEVA Film for Solar Panel Encapsulation.China Switchable Film for Privacy Glass, SmartGlass.cnc@cncnext.com / www.cncnext.com / benext77@gmail.com / benext77@hotmail.com /eva@evafilms.com / www.evafilms.com