Walaxda siidaynta waa walax shaqaynaysa oo u shaqaysa sida dhex dhexaadinta u dhaxaysa caaryada iyo alaabta la dhammeeyey waxaana si balaadhan loogu isticmaalaa hawlgalo kala duwan oo qaabaynta ah sida birta dhinta shubka, xumbo polyurethane iyo elastomers, balaastiig la xoojiyay fiber galaas, cirbad heerkulbeegyo qaabaysan, vacuum foamed go'yaal iyo profiles extruded. Waxyaalaha caaryada sii daaya waa kuwo kiimiko ahaan, kulaylka iyo walbahaarka u adkaysta, si sahal ah uma burburaan ama ma daataan, ku xidhaan caaryada iyada oo aan loo wareejin qaybta dhammaatay, hana faragelin rinjiyeynta ama hawlaha kale ee habaynta sare.