Silver epoxy paint is smooth, flexible

MG CHEMICALS 842ER 2-part Silver Epoxy Paint is a smooth, flexible conductive coating that delivers improved electrical conductivity at a low film thickness. Product maintains flexibility at low temperatures, provides exceptional adhesion to a wide variety of substrates, and delivers enhanced environmental stability. It may be applied by brush or spray. Paint may be used to provide high frequency EMI shielding to components and devices in aerospace and military applications. It is also suitable for large volume board-level or package-level EMI shielding applications, where it can replace traditional metal lid, reducing cost, board thickness and mass. For board and package level operations firm offers a 1-part urethane alternative.

click here for more info