Bubbles at Edges of Laminated Glass with Polyvinyl Butyral PVB interlayer film PETER SHIN LIN www.helloglass.com Condition: Small bubbles at the edges of safety laminated glass with Polyvinyl Butyral PVB interlayer film. Reason: 1) When the autoclave decreasing the pressure, although the temperature detector shows the temperature is under 50 degree Celsius, due to the …
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