A-55 PS Aluminum Foil / Polyester Film EMI-RFI Shielding Tape
A-55 PS is an aluminum foil and polyester film laminate tape engineered for EMI and RFI shielding, providing signal attenuation of 95 dB @ 100 MHz from a 0.0070″ +/- 5% construction built with a 0.00035″ aluminum foil, 0.005″ polyester film, and 0.0015″ acrylic pressure-sensitive adhesive. It delivers a peel strength of 40 oz./inch of width and a dielectric strength of 13,500 volts, with a tensile strength of 18,000 P.S.I. minimum and 115% elongation at break. The tape is supplied with a 90 lb. release liner and is manufactured in compliance with FCC part sub-part J, Vol. 11, July 1981.
Key Properties
- Peel Strength: 40 oz./inch of width (ASTM-D-1000)
- Signal Attenuation: 95 dB @ 100 MHz (ASTM D4935-99)
- Tensile Strength: 18,000 P.S.I. min. (ASTM-D-882)
- Dielectric Strength: 13,500 volts (ASTM D149)
- Total Thickness: 0.0070″ +/- 5% (ASTM-D-3652)
- Elongation at Break: 115% (ASTM-D-882)
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Aluminum Foil Thickness | 0.00035″ | — |
| Polyester Film Thickness | 0.005″ | — |
| Adhesive Thickness | 0.0015″ | — |
| Release Liner | 90 lb. | — |
| Total Thickness | 0.0070″ +/- 5% | ASTM-D-3652 |
| Color | Silver | — |
| Shelf Life | 1 year @ 70°F(21°C)/50% R.H. | — |
Mechanical Properties
| Property | Value | Test Method |
| Peel Strength | 40 oz./inch of width | ASTM-D-1000 |
| Tensile Strength | 18,000 P.S.I. min. | ASTM-D-882 |
| Elongation at Break | 115% | ASTM-D-882 |
Electrical Properties
| Property | Value | Test Method |
| Signal Attenuation | 95 dB @ 100 MHz | ASTM D4935-99 |
| Dielectric Strength | 13,500 volts | ASTM D149 |
Compliance
- FCC part sub-part J, Vol. 11, July 1981 — Compliant
- EMI/RFI shielding for electronic enclosures
- Cable and connector shielding
- Grounding and static drain applications
- Shielding for PCB and component assemblies
- High-attenuation shielding for sensitive electronics
Common industries: Electronics manufacturing, telecommunications, industrial equipment, high-reliability electronics.
A-55 PS is the heaviest-gauge pressure-sensitive laminate in the A-Series line, built from a 0.00035″ aluminum foil, a 0.005″ polyester film carrier, and a 0.0015″ acrylic adhesive system to a total thickness of 0.0070″ +/- 5%. The construction is designed for EMI and RFI shielding of electronic enclosures, cables, connectors, and PCB assemblies where high-attenuation performance and strong electrical insulation margin are both required.
The tape’s 13,500-volt dielectric strength and 115% elongation at break are the highest of any grade in the line, and its 18,000 P.S.I. minimum tensile strength supports demanding converting and application requirements. It is finished in silver, supplied with a 90 lb. release liner for clean unwind and precision die-cutting, and carries a one-year shelf life when stored at 70°F (21°C) and 50% relative humidity. Compliant with FCC part sub-part J, Vol. 11, July 1981.
What differentiates A-55 PS from other tape grades in the line?
A-55 PS is the heaviest-gauge grade in the A-Series line at 0.0070" total thickness, delivering the highest dielectric strength (13,500 volts) and elongation at break (115%) in the family alongside a 40 oz./inch peel strength matching A-15 PS. It is also manufactured in compliance with FCC part sub-part J, Vol. 11, July 1981, making it the heaviest-duty, most compliance-documented grade in the line for demanding shielding applications.
Why is peel adhesion important for A-55 PS?
Peel adhesion determines how reliably A-55 PS bonds to and remains anchored on the enclosure, cable, or component surface during installation. With a peel strength of 40 oz./inch of width, the tape resists lifting and adhesive failure during handling and long-term service, which is critical to maintaining a continuous, effective EMI/RFI shielding path.
What is the storage range for A-55 PS?
The TDS specifies a shelf life of 1 year when stored at 70°F (21°C) and 50% relative humidity; no separate operating temperature range is stated on the manufacturer's TDS.
Is A-55 PS suitable for FCC-regulated EMI/RFI shielding environments?
Yes. A-55 PS is manufactured in compliance with FCC part sub-part J, Vol. 11, July 1981, as stated on the manufacturer's TDS.
How should A-55 PS be specified?
Specify grade (A-55 PS), thickness, color, adhesive type, liner type, compliance requirements, dimensional tolerances, and finished format.
