| Description: CHO-SHIELD® 576 coating is a two component, silver filled, highly conductive epoxy paint designed to provide EMI shielding when applied to a dielectric plastic substrate. This coating was specifically developed as a variant of CHO-SHIELD® 596. CHO-SHIELD® 576 dries to the touch in less than 1 hour at room temperature and attains full chemical resistance after 1 week at room temperature. However, the best electrical properties are achieved by curing at elevated temperatures. Performance: CHO-SHIELD® 576 is first sprayed onto plastic substrate, and further plating operations may follow. The full stack up of plating and coating will meet strict adhesion requirements, equivalent to ASTM D3359 with a rating of 5A after exposure to 95% RH at 65°C for 24 hours and thermal cycling from one hour at -57°C to one hour at 95°C for a total of four cycles. Information provided by Chomerics |
