CMT-HT-108-0500

CHO-MASK II ® Conductive Foil Tape with Peel-Off Mask for Painting Operations Customer Value Proposition Parker Chomerics CHO-MASK® II Conductive Foil Tape is available in Standard Tack (ST) and High Tack (HT) versions, providing an electrically conductive, non-corroding surface on painted metal electronic enclosures. CHO-MASK II tapes consist of recessed polyester paint masking film covering a layer of either 1 oz (28.4 g) or 2 oz (56.7 g) tin-plated copper foil. The back of the foil features a conductive pressure sensitive adhesive (PSA). CHO-MASK II tape is applied to clean metal frame, door and panel surfaces where electrical continuity is required. After painting, the peel-off mask is easily removed, allowing the paint to seal both edges of the foil layer. The foil imparts a clean, electrically conductive path from the panel, through an EMI gasket, to the cabinet frame. It also provides grounding points within the enclosure. Product Features • More cost-effective and environmentally friendly than plating and coating methods • Peel-off mask is removed easily any time, at any temperature • Mask is recessed from edges for paint overlap and corrosion protection Contact Information Parker Hannifin Corporation Chomerics Division 77 Dragon Court Woburn, MA 01801 phone 781 935 4850 fax 781 933 4318 chomailbox@parker.com www.parker.com/chomerics • Solvent/chemical resistant • Maintains performance after 10,000 door closure cycles • Passes MIL-STD-810 Salt Fog testing • Foil tape meets MIL-T-47012 • Tin-plated on foil meets MIL-T-10727 • Pressure sensitive adhesive contains highly stable, conductive particles for long-term reliability • Provides effective EMI shielding performance when used in conjunction with Parker Chomerics EMI gaskets Typical Applications • Enclosure enclosures • Painted cabinets and boxes • Doors and flanges or other mating seams CHO-MASK® II – Product Information Table 1 - Technical Data Typical Properties CHO-MASK II ST (Standard Tack) CHO-MASK II HT (High Tack) Test Method 1 oz Tin-Plated Copper Foil 2 oz Tin-Plated Copper Foil Visual 1 oz = 1.4 mils (0.04 mm) 2 oz = 2.8 mils (0.07 mm) Visual Masking Film Polyester Chomerics Adhesive Type Electrically Conductive, Pressure-Sensitive Acrylic Visual Foil Options Foil/Fabric Thickness, mils (mm) Adhesive Thickness, mils (mm) Total Thickness1, mils (mm) 1.8 (0.05) 2.0 (0.05) Visual 1 oz = 3.2 (0.08) 2 oz = 4.6 (0.12) 1 oz = 3.0 (0.08) 2 oz = 4.8 (0.12) ASTM-D1000 Temperature Range, ˚F (˚C) -40 to 180 (-40 to 82) Chomerics Electrical Resistance2, milliohms