Which material is primarily used in ESD protective bags?

The primary material used in ESD (Electrostatic Discharge) protective bags is metal-coated plastic. This is due to its effectiveness in shielding sensitive electronic components from static electricity, which can damage or disrupt their function. The metal coating on the plastic provides a conductive layer that dissipates static charges before they can accumulate on the bag's surface, ensuring that the items inside remain protected.

Additionally, the flexibility and lightweight nature of plastic make it an ideal choice for packaging electronic components. It allows for easy handling and storage while offering the necessary protection. The combination of these properties makes metal-coated plastic the preferred material for ESD protective bags in various industrial and commercial applications.