Pure Copper Polyester Taffeta
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- This copper plated polyester fabric is very good at blocking common wireless signals.
- Also very good at blocking 5G High-Band (millimeter waves).
- It is highly conductive on the outside.
- It also blocks the electric fields very well if grounded (ungrounded it will usually increase them to some extent at least).
- It will not block the magnetic fields (most fabrics do not).
- This fabric does not allow air and light to pass through it.
- It can discolor over time.
- Cut by the foot, from a roll that is 42.5 inches wide.