Ii-microspheres zeglasi, ezaziwa ngokuba zii-Hollow Glass Microspheres (HGM), luhlobo lwezinto ezicutshungulwa ngokukodwa ezikhaphukhaphu, ezingezizo ezesinyithi, nezinemisebenzi emininzi. Zenziwe ngokuyintloko nge-borosilicate kwaye ziveliswa ngokutshiswa kobushushu obuphezulu kumaqondo obushushu aqala kwi-700 ukuya kwi-800℃. Ngobukhulu besuntswana obuqhelekileyo buphakathi kwe-10 kunye ne-250 micrometers kunye nobukhulu bodonga obuyi-12 micrometers, ezi microspheres zinobukhulu be-micron kwaye zibonisa iimpawu ezintle ezifana nokukhanya, amandla aphezulu, ukufudumala kobushushu, kunye nokumelana nokugqwala.

Iiglasi ezincinci zineendlela ezahlukeneyo zokusetyenziswa ngenxa yeempawu zazo ezizodwa. Zihlala zisetyenziswa njengezizalisi kwizinto ezifana ne-fiberglass, apho zinokunciphisa ubunzima, zonyuse ukuqina, amandla okubetha, kunye namandla okugoba, ngelixa ziphucula uzinzo lweekhemikhali kunye nokulungiswa kwakhona. Ukongeza, zinokuthatha indawo yezinto ezibizayo ze-resin, zinciphise iindleko zemveliso. Kwizinto ezidityanisiweyo zokulungisa, ezifana ne-putty, zibonelela ngokukhanya okukhaphukhaphu, ukunamathela okuqinileyo, ukusetyenziswa okulula, ukuncitshiswa okuncinci, kunye nozinzo oluhle.

Ngokubanzi, ii-microspheres zeglasi zizinto ezinokuguquguquka nezixabisekileyo ezinokubakho uphuhliso oluqhubekayo kunye nokusetyenziswa kumashishini ahlukeneyo.