DonSpray 502 ke li-polyols tsa motsoako oa spray tse nang le HCFC-141B joalo ka moemeli oa ho foka, e sebetsana le isocyanate ho hlahisa foam e nang le litšoantšiso tse ntle haholo, tse latelang:

1) lisele tse ntle le tse ts'oanang

2) conductivity e tlaase ea mocheso

3) ho hanyetsa mollo o phethahetseng

4) e babatsehang mocheso tlaase dimenttional botsitso.

E sebetsa ho mefuta eohle ea merero ea ho kenya mocheso e sebelisang sefafatsi, joalo ka likamore tse batang, lipitsa tse kholo, lipeipi tse kholo le lebota la ka ntle la kaho kapa lebota le kahare jj.