2 WIPERS 18 Polyester Microdenier WW4009 Microdenier Fabric Magnified Polyester Fabric Magnified Comparison of wiping procedure WIPERS Microdenier Clean Wipers WW4009 KM8000 KM Microdenier is made of 013 denier of continuous filament that ensures unparalleled wiping ability with high absorbency and cleanliness With ultrafine structure of its fabric the fabric of KM Microdenier provides wide contact to wiped surface so that contaminants on the surface are removed effectively This fabric also provides more room between fibers so absorption capacity is increased more than twice than other cleanroom polyester wipers ● Microfilament provides better contact to surface ● Laundered and packaged in the class 10 cleanroom ● Sealed edges prevent particle or lint generation ● Ultrafine fabric structure increase absorbency capacity ● Applications: Class 10 cleanroom for Semiconductor LCD and HDD manufacturing How to order Code Size Description Packing Unit WW4006 WW4009 WW4006HK WW4009HK KM8000 ※ HK:Highdensity Knit Technical Data 6" x 6" 9" x 9" 6" x 6" 9" x 9" 9" x 9" Contents Particle Count (>05㎛ea/m 2 ) (>03㎛ea) NVR (g/m 2 ) Extractable ions (ppm) Weight (g/m 2 ) Absorbency Time to sorption Tensile strength (kg/cm 2 ) Thickness (㎛) Sealed Edges / Stacking Contamination Control Liquid Particle Count (per m 2 ) Air Borne Particle (per ft 3 ) Lint (> 100㎛ EA/Sh) DI water IPA Na K Cl NO2 General Characteristics Capacity (ml/m 2 ) Capacity (ml/g) (sec/60mm) MD (Machine Direction) CD (Cross Direction) WW4009 02 002 013 001 100 pcs / 10 bags Specifications 96 10 >120 125 < 10 > 400 > 400 > 200 20 WW4009HK 07 x106 < 40 < 20 002 01 0013 123 001 001 210 20 > 350 159 < 10 > 300 > 150 > 470 20

Sealed Edge Polyester Clean Wipers KM4000D KM4000D is a ultra clean wiper with sealed & fused border designed for class 10 cleanroom applications Minimizing particle or lint generation caused by edge damage in actual use KM4000D provides a 4side fused border for better protection on wiper edge This kind of wipers are recommended for rigorous wiping applications but cleanliness should be maintained ● Class 10 compatible clean wipers ● Laundered and packaged in the class 10 cleanroom ● Fused border to protect edges at tough wiping operation ● Thermally sealed edges prevent particle or lint generation ● Double bag packaging prevent cross contamination ● Applications: Class 10 cleanroom for Semiconductor LCD HDD manufacturing How to order Code Size Description Packing Unit KM4000D 9" x 9" 4side fused border / Stacking 100 pcs / 10 bags Technical Data Contents Particle Count (>05㎛ea/m 2 ) (>03㎛ea) NVR (g/m 2 ) Extractable ions (ppm) Weight (g/m 2 ) Absorbency Time to sorption Tensile Strength (kg/cm 2 ) Thickness (㎛) Liquid Particle Count (per m2 ) Air Borne Particle (per ft3 Contamination Control ) Lint (> 100㎛ EA/Sh) DI water IPA Na K Cl NO2 General Characteristics Capacity (ml/m 2 ) Capacity (ml/g) (sec/60mm) MD (Machine Direction) CD (Cross Direction) Specifications WW4000D 05 x 10 5 < 20 < 20 002 01 01 01 005 005 168 17 > 370 > 219 < 4 > 200 > 200 580 20 KM4000D WIPERS KM4000D “B” Brand Wiper Comparison of edge finishing Fused border 2 WIPERS 19