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clean room door mat ( tack mat ), cleanroom wiper , ESD products, PVA sponge Semi-Fold type nonwoven wiper from Cleanroom supplies division of OLOO Incorporated (Former Nano Times Corp ). (April 8, 1998 by H.Shin , Technical Lab) Cleanroom supplies division of OLOO Incorporated (Former Nano Times Corp ). - Introducing, Semi-Fold Nonwoven Wiper CAT#2-2, a highly absorbent and versatile 5.5"X 4.5" fold wiper engineered for special purpose cleaning applications that require soft surface, low linting and durability. Fabricated from a hydroentangled,nonwoven blend of cellulose and Polyester, CAT#2-2 wipers offer the cleanest characteristics in their class. The fabric blend is specially processed to reduce surface friction,reduce particle, fiber, while increasing its absorbent properties and tear strength.They are excellent for removing heavy soils with most common solvents as well as for wiping and picking up aqueous spills in cleanroom enviroments or cleaning precision components. The sample will be available from May, 1998. 1)Type : Semi - Fold 2)Size : 5.5 x 4.5 inch ( after folding) 3)5.5 x 9 inch ( before folding)