Delamination in edges and holes of laminated glass with Polyvinyl Butyral PVB interlayer film
Reason:The plainness of the edges and holes of the tempered glass is not good.
Solution: Adjust he plainness of the tempered glass, clip the edges of the pre-laminated glass before putted into the autoclave. But don’t use too big clips, in case the pvb film’s shape changes.
Reason: Delamination after the laminated glass is installed in the building.
Solution: Install the laminated glass gently. it’s better if use the wrench with scale to hole the laminated glass. Make sure the glass glue is suitable for the laminated glass, and it should be neutral glue.
Irregular Delamination of laminated glass with Polyvinyl Butyral PVB interlayer film
Reason1: The Adhesion of Polyvinyl Butyral PVB interlayer film and glass is not strong.
Solution1:The washing glass water is not good quality, it’s better use the water whose electric conductivity is lower than 20us.
Solution2: The Polyvinyl Butyral PVB interlayer film absorbed too much moisture, maybe more than 6%. If moisture of Polyvinyl Butyral PVB interlayer film is higher than 1%, the laminated glass may appers white haze.
Solution3: The combination of pre-laminated glass and roller exhausting air stage maybe not operate correctly, which lead to Polyvinyl Butyral PVB interlayer film not reacted perfectly. The main parameters are temperature, pressure and time.
Solution4： The glass surface is not clean and dry enough.
Reason2: The Polyvinyl Butyral PVB interlayer film is too thin.
Solution: Use thicker or more layer of Polyvinyl Butyral PVB interlayer film.
Reason3: The plainness of hte tempered glass is not good.
Solution: Choose better quanlity tempered glass.
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