DESCRIPTION: Easy-to-use CHO-MASK II conductive foil tape provides a cost-effective alternative
to chromate conversion coating, plating and conductive paints. CHO-MASK II tape consists of a 3 mil polyester paint mask covering a layer of 2 oz. (56.7g) tin-plated copper foil. The solvent or chemical resistant tape can withstand baking temperatures of up to 400°F (204°C) while maintaining excellent adhesion and conductivity. CHO-MASK II foil tape meets MIL-T-47012 and the tin-plating meets MIL-T-10727. The adhesive contains highly stable, conductive particles which provide long-term reliability.
CHO-MASK II tape is applied to clean metal frame, door and panel surfaces where electrical continuity is required. The mask’s recessed edge allows paint to flow over foil edges and provides corrosion protection. After painting, the peel-off mask is easily removed, exposing a clean foil surface with electrical through resistance below 200 milliohms. When used with Chomerics’ EMI gaskets, CHO-MASK II tape provides effective shielding performance and grounding points within the painted enclosure. Both the ST (Standard Tack) and HT (High Tack) versions of CHOMASK II tape can accommodate a wide range of enclosure finishing processes, including powder coating.
