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ChemStat 959 Plus Series
Conductive Fabric, Conductive Seam Tape

ChemStat 959 Plus is a conductive version of ChemStat 909A Plus Series. It is designed for those cleanrooms where the elimination of very low levels of static charges and the minimization of microcontamination are primary concerns, such as in the manufacture of magnetoresistive heads and disk drives. It is also used in cleanroom filtration systems.

ChemStat 959 Plus is composed of multifilament polyester and possesses a highly conductive grid based on the patented grid of the ChemStat 959 Plus Series. The grid combines the ChemStat carbon yarn with a custom-designed metallic fiber.

ChemStat 959 Plus is available in the same 8 attractive colors as the ChemStat 909A Plus Series.

Complementing ChemStat 959 Plus and designated ChemStat 959T Plus is a highly conductive woven tape for incorporation in sewn seams. The tape provides panel-to-panel conductivity across the seam, as if there were no seam at all. The latest T Plus version is 100% conductive in the tapewise direction, ensuring electrical contact between the tape and each grounding snap, while offering ultra-low electrical resistance.

Do not use chlorine or other bleaches, sulfur or sulfurous compounds, or acids in conjunction with ChemStat 959 Plus or ChemStat 959T Plus fabrics.

Technical Data

Construction 2/1 twill, 1/4 in (6.5 mm) grid
Weight (ASTM D 3776) 3.0 oz/yd2 (110 g/m2)
Yarn Content, by weight 100% multifilament polyester
<1% carbon, polyamide, and silver
Voltage Decay (Fed Std 101 Method 4046) 40V@0.05 secs
Surface Resistivity (AATCC 76) 105 ohms/sq
Tear Strength, w+f (ASTM D 4533) 50 lbf (250N)
Durability (ASTM D 4157) 15,000 cycles no noticeable wear
Permeability (ASTM D737)
.....Chemstat 959 Plus
.....Chemstat 959A Plus
10.0 cfm (30.0 L/dm2/min)
2.0 cfm (6.0 L/dm2/min)
Fabric Cooling Rating, MVTR
.....(ASTM E96 Method B, upright)
.....Chemstat 959 Plus
.....Chemstat 959A Plus		 very high

(64.0 g/m2/hr)
(52.0 g/m2/hr)
Mean Pore Size (ASTM F 902) 2.0 microns
Laundry Compatibility DI water, perchlorethylene, Freon TF
Sterilization Compatibility steam autoclave
ETO
Optical Rating (ASTM E 284) opaque

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