Gilashin da aka lanƙwara shine gina lita biyu na galsss bond tare da wani abu mai mannewa - yawanci polyvinyl butrol (PVB) .Wannan PVBlayer mara ganuwa an tsara shi don kiyaye gilashin hade da tsarin akan karye, maimakon barin gilashin ya rushe cikin in ba haka ba babba ba. , kaifi, kuma masu haɗari piedes.PVB kuma dulls gefuna na fashe shards na gilashi, muhimmanci rage hadarin rauni.Bayan jurewa jerin dumama da latsa, The biyu lita na gilashin da PVB interlayer zama daya m, m gilashin yi.