Kukho iintlobo ezininzi zeglasi, kuquka iglasi eqhelekileyo yokwakha, okanye iglasi esetyenziweyo yaza yasetyenziswa kwiindawo ezikhethekileyo. Iimfuneko zokucoca nokucoceka kweglasi nazo zahlukile. Namhlanje siza kwazisa umatshini wokucoca onokucoca iglasi ye-optical.

Ngenxa yeempawu zayo, iglasi ekhanyayo kufuneka ihlangabezane neemfuno zemifanekiso ye-optical kunye nobukhulu obuncinci, ngoko ke kufuneka kongezwe iikhemikhali ezikhethekileyo ngexesha lenkqubo yokucoca ukuze kunyibilike uthuli kunye namabala kumphezulu weglasi, kwaye kufuneka amanzi acocekileyo ukucoca iglasi. Izixhobo zokucoca iglasi ekhanyayo ezenziwe yinkampani yethu zisebenzisa isakhiwo esithe tye, ukucoca kwamanqanaba amathathu, kwaye zixhotyiswe ngeetanki zamanzi ezintathu. Zihlanjwa nge-spray yoxinzelelo oluphezulu, ukuhlamba amayeza, kunye namanzi acocekileyo. Emva kweeseti ezimbini zokomisa, inkqubo yokucoca ekugqibeleni igqityiwe.