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Moisture Barrier Bag

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MEC Industries

MEC B/D., 29, Olympic-ro 92-gil, Gangdong-gu, Seoul
Contact name
June Kim

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  • Place of Origin: Korea


Moisture Barrier Bag

It is essential to keep Surface-Mount Devices (SMDs) dry from manufacturing point to the time of reflow soldering. Moisture Barrier Bag, also know as Vapor Barrier Bag, is made from multiple layers of plastic and aluminum that control moisture vapor leakage.

Basically, there are 3 kinds of Moisture Barrier Bags (MBBs), Tyvek MBB, AMBB and ANMB, in the market. The key factor of moisture barrier function of the bag is metal layer, like thickness of the foil layer, foil or metalized, etc., but thickness or material of other layers also can partially affect the quality of MBB.


● Tyvek Moisture Barrier Bag (Tyvek MBB)

Tyvek MBB is ideal for moisture sensitive devices or components, and especially is suitable for sharp-shape components thanks to its excellent puncture resistance.

● Aluminum Moisture Barrier Bag (AMBB)

AMBB is a good choice for moisture sensitive devices and components. Depending on the products stored in the bag and the periods of storage, you have selections on AMBB by adjusting the total thickness of the bag, the thickness of AL foil layer, etc.

● Aluminized Moisture Bag (ANMBB)

ANMBB is the new technology for barrier materials, which reduces material cost. Aluminum is vapor-deposited onto polyester film. This cost effective bag comparing to AMBB is suitable for the medium to short term dry-packaging users.


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