RN manne ne mai kashi biyu. Bayan ƙara wani kaso na RN zuwa manne, dole ne a yi amfani da abin da aka shirya don amfani da abubuwa biyu a cikin wani lokaci (rayuwar tukunya) wanda aka ƙaddara ba kawai ta abun ciki na roba ba, har ma da sauran abubuwan da ke cikin halitta (misali resins, antioxidants, kaushi, da dai sauransu). Idan ba a yi amfani da mannen a cikin wannan lokacin ba, zai iya zama da wuya a yi amfani da shi kuma danko yana ƙaruwa da sauri har sai lokacin gel ba zai iya jurewa ba. Don haka, ba za a yi amfani da shi ba.
Shawarar Sashi:
Don magance manne na sassa 100 ta nauyi (pbw) bisa:
Graft-Chloroprene roba(abin ciki na roba kimanin. 16%) | 3-5% pbw RN |
Chloroprene roba(abin ciki na roba kimanin. 20%) | 5-7% pbw RN |
Hydroxyl polyurethane(abin ciki na polyurethane kimanin 15%) | 3-5% pbw RN |