Ujeedada guud ee fiilooyinka gudaha ee qalabka elektaroonigga ah iyo korantada, halkaasoo ay soo gaadhay saliid heerkul aan ka badnayn 60 ° C ama 80 ° C. Dhumucda dahaarka lebbiska ee siliga si loo hubiyo in si sahlan loo jeexjeexo loona gooyo. U adkaysta acids, alkalis, saliidaha, qoyaanka iyo fungi.