Ipayipi lensimbi engagqwali lisho ukumelana negesi, amanzi esitimu kanye nokunye okugqwala okubuthakathaka.Insimbi engamelana ne-Acid ibhekisela ku-asidi, i-alkali, usawoti, njll.
Uhlobo: 1 ipayipi yensimbi engenamthungo;2 insimbi engagqwali ashiselwe ipayipi.
Ngokusho kokukhanya: ishubhu lensimbi engagqwali evamile, ishubhu yensimbi engagqwali ka-matt, ishubhu lensimbi engenasici elikhanyayo.
Izinga:ASTM A213,ASTM A778,ASTM A268.ASTM A 632,ASTM A358
Isetshenziswa kumapayipi ezimboni nasezintweni zesakhiwo semishini ezifana ne-petroleum, amakhemikhali, ezokwelapha, ukudla, imboni yokukhanya, izinsimbi zomshini, njll.
