Foil free edge mylar tape
Foil Free Edge Aluminum Mylar Tape is a specialized shielding material widely used in the cable industry. Designed to meet the growing demand for high-performance shielding and signal integrity, this tape offers a unique combination of excellent conductivity, mechanical strength, and ease of processing.
Unlike traditional bonded aluminum mylar tapes, the foil free edge design means that the aluminum foil layer is narrower than the polyester (PET) film backing. This structure leaves an exposed edge of PET film on one or both sides of the tape, allowing for easier and safer longitudinal wrapping during cable production. The free edge design helps prevent short circuits by avoiding direct contact between the aluminum layer and the inner cable conductors, which is particularly important in high-frequency signal and communication cables.

Products description
- Quality control :under ISO standards and RoHS compliant.
- HS code :7607.20
- Structure:AL-PET-PET
- Min width :9mm/12mm
- Inner core size (ID):2"(52mm), 3"(76mm) ,
Technical parameters
Structure | Thickness(μm) |
9AL+12PET+12PET | 38~39 |
9AL+12PET+19PET | 45~47 |
9AL+12PET+23PET | 49~50 |
9AL+19PET+23PET | 56-58 |
The biggest difference in the appearance of foil free edge aluminum mylar tape and ordinary aluminum pet foil tape is the width of PET. And the width of ordinary aluminum PET tape is AL layer and PET layer is the same.As for foil free edge aluminum mylar, the PET surface of the foil is wider than the AL surface, and the foil free edge aluminum mylar tape is divided into two kinds: one PET side is wider than the AL surface, and both PET sides are wider than the AL surface. Mainly used in HDMI, DVI,DP,RGB etc high frequency pairs of stranded cable &wires blocking electronic wave interference in equal Generally, If use the foil free edge aluminum mylar tape , and it needs to be wrapped once, while the ordinary aluminum foil needs to be wrapped and then wrapped pet again.
Typical Applications: Shielding of twisted pairs in multi-pair, multiconductor cables such as process control, computer or instrumentation cables.
Normal width 9mm/12mm,12mm/15mm,19/22mm,23mm/26mm