... cellulose & 45% polyester; KC-0409, 100% polyester; M-3, 100% plant fiber. High water/oil absorbency and cleaning property ... ability of removing contamination5. Very soft, cleans surfaces without scratchingApplications 1) Used in the semiconductor, SMT, PCB product line, chips ... disk and soft disk4) Good for cleaning work surfaces, tools, machines etc.5) Very ideal for using in class 100-1000 cleanroom ...