Ilaphu leglasi yefiber luhlobo lwelaphu elingenanto elinokujikeleza okungajikwanga. Yenziwe ngezinto ezintle zeglasi ngothotho lokunyibilika kobushushu obuphezulu, ukuzoba, ukuluka umsonto kunye nezinye iinkqubo. Amandla amakhulu axhomekeke kwi-warp kunye ne-weft direction yelaphu. Ukuba amandla e-warp okanye i-weft aphezulu, inokulukwa kwi-unidirectional fabric. Izinto ezisisiseko zelaphu lefayibha yeglasi yifayibha yeglasi yasimahla yealkali, kwaye inkqubo yayo yokuvelisa ngokubanzi yenziwe ngelubricant eyomeleziweyo. Ngenxa yeenzuzo zokusebenza kakuhle kokugquma kunye nokumelana nobushushu obuphezulu, ilaphu lefayibha yeglasi linokusetyenziswa njengesixhobo sokubopha i-insulation yemoto kunye namandla ombane. Inokwenza ukuba imoto ifumane ukusebenza okugqwesileyo kokugquma, yandise ubomi benkonzo yemoto, inciphise umthamo kunye nobunzima.

Ilaphu leglasi yefayibha luhlobo lwemathiriyeli ye-inorganic nonmetal esebenza kakuhle. Ineenzuzo zokugquma okulungileyo, ukuxhathisa ubushushu obuqinileyo, ukuxhathisa okuhle kwe-corrosion kunye namandla aphezulu omatshini. Ilaphu legilasi yefayibha linenkangeleko egudileyo kwaye intle, ingxinano yokuluka efanayo, ukuthamba kunye nokuguquguquka okuhle nakumphezulu ongalinganiyo. Ilaphu elandisiweyo lefayibha yeglasi lilukwe ngomsonto owandisiweyo wefibre yeglasi, enokusebenza kakuhle kokugquma ubushushu kunye nokuphatheka. Iipropati ezahlukeneyo zokugquma zingafezekiswa ngokuguqula isakhiwo selaphu kunye nendlela yokucubungula. Idla ngokusetyenziselwa ukugquma ukugquma okususekayo, ingubo yomlilo, ikhethini yomlilo, ijoyini yokwandisa kunye nombhobho wokukhupha umsi. Iyakwazi ukucubungula ilaphu lefiber yeglasi eyandisiweyo egqunywe ngefoyile yealuminiyam.