Unique-Bargains Anti Static Shielding Bags 20 PCS 13" x 17.7

20-Pack Static Shielding Bags

This pack supplies twenty flat open-top shielding bags sized at 13 by 17.7 inches for protecting sensitive electronics. The APET/CPP construction creates a Faraday-cage effect that blocks electrostatic fields during storage or transit. They suit engineers, repair technicians and anyone handling PCBs, memory modules or bare drives. Buyers needing heat-sealable or zip-lock closures will not find those features here.

Material and Thickness Details

Each bag uses a double-sided 15 silk laminate that resists punctures while remaining flexible enough for easy insertion of boards. The outer dimensions measure 330 by 450 millimetres, though the effective inner width may be five to ten millimetres less due to production tolerances. The metallised layers dissipate surface charges without generating particulate contamination. No grounding strap or indicator label is included.

Behaviour Under Continuous Handling

Repeated opening and folding does not degrade the shielding performance because the conductive layers are buried between polymer films. The bags maintain their anti-static properties across the temperature ranges typical of server rooms and data centres. They are not rated for vacuum sealing or cleanroom ISO classes beyond general electronics handling. Heavy or sharp-edged components should be cushioned separately to avoid film stress.