Parker Chomerics CHO-SHIELD® 4994 conductive coating is a very smooth, highly conductive, silver-filled polyurethane designed for military/aerospace airframe applications. CHO-SHIELD® 4994 is a metallic light brown colored polyurethane that is designed to be applied by standard high volume, low pressure spray equipment. Features and Benefits:• Superior conductivity (<0.075 ohms/square) and EMI shielding (>85 dB)• High flexibility or material for easy application in difficult geometries• Fluid resistance to solvents as well as operational and environmental fluids• Excellent pot life (3 hours) for application flexibility• Ambient temperature curing (7 days) or elevated temperature curing (4 hours) options• Can be applied to aluminum as well as non-conductive substrates
