CHOFORM® 5538 is a one component, moisture cure, electrically conductive, form-in-place EMI gasketing material. The formulation contains nickel –plated graphite particles dispersed in a silicone elastomer. The material is designed for ease of dispensing with increased flow rates when dispensing 0.5 mm height beads. CHOFORM 5538 is designed to be robotically dispensed onto a variety of substrates, ranging from metal castings to electrically conductive coatings on plastic substrates. Typical adhesion values for dispensed part QC requirements are 4 – 6 N/cm and typical resistance values from dispensed bead to substrate are less than 2 ohms. The choice of CHOFORM 5538 for a specific application should be discussed with a Chomerics’ applications engineer so as to ensure proper material selection and ensure specific dispense parameters.
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