SSB is manufactured by depositing a thin metal coating, like aluminum over an antistatic polyester film substrate. This metalized layer protects the devices or the components in the bag from electrostatic fields.

According to the position of the metalized layer, there are two types of metalized shielding bags, Metal-In and Metal-Out, in the market. The metal-in or buried metal shielding bags are the most commonly used and recommended for packaging of static-sensitive components. They also tend to be superior to the metal-out bags in durability and cost.

The metal-out shielding bags also protect the devices in the bag against static-induced damage. The metal layer is closer to the
outside surface so these bags have lower resistance readings than the metal-in bags, which can be important in some applications.

Our SSB is all metal-in type, which has the metalized layer inside.