Tepi ya galasi ya galasi imapangidwa ndi ulusi wopangidwa ndi galasi lamphamvu kwambiri ngati chida cholimbikitsira ndikukutidwa ndi zomatira zolimba zomata kukakamiza kumbali zonse ziwiri;Lamba ali ndi mphamvu zolimba kwambiri, kukhuthala kolimba, kukana kwa abrasion komanso kukana chinyezi.
Itha kugwiritsidwa ntchito kuyika ndi kukonza zithunzi zachiwonetsero, ma nameplates, makapeti, matabwa ndi zina zomwe zimafunikira kukhuthala kwakukulu.Kuyika kwakukulu, kukonza zigawo kapena kumanga mipando, matabwa, zitsulo, zombo, makina, zipangizo zamagetsi ndi mafakitale ena.