Ipulasitiki yegwebu le-Yadina melamine, eyaziwa nangokuthi igwebu le-melamine noma isipontshi se-melamine, iyigwebu elithambile elinezimbobo kakhulu, ngokwemvelo elingabusheki ilangabi elenziwe nge-melamine resin enegwebu ngaphansi kwezimo ezithile zenqubo.Lapho kuvezwa ilangabi elivulekile, ubuso be-foam buqala ukushisa, bubole ngokushesha futhi bukhiqize inani elikhulu legesi ye-inert ehlanza umoya ozungezile.Ngesikhathi esifanayo, ungqimba oluminyene lwe-char kwakheka ngokushesha phezulu, luhlukanise ngokuphumelelayo umoya-mpilo futhi lubangele ukuba ilangabi lizicime ngokwalo.Le nto ayikhiqizi amaconsi noma intuthu enobuthi, ngaleyo ndlela iqeda izingozi zokuphepha komlilo we-polymer.Ngakho-ke, ngisho nangaphandle kokwengezwa kwezinto ezibuyisela amalangabi, ukuncipha kwelangabi kwaleli gwebu kungahlangabezana nezinga le-B1 elisezingeni eliphansi lezinto ezikwazi ukuvutha (izinga laseJalimane) elicaciswe yi-DIN4102 kanye nezinga le-V0 eliphakeme lezinto ezibonakalayo zokubuyiswa komlilo (i-American Insurance Association standard) ecaciswe yi-UL94. .