A-61 PS Aluminum Foil / Polyester Film EMI-RFI Shielding Tape
A-61 PS is an aluminum foil and polyester film laminate pressure-sensitive tape built from a 0.001″ aluminum foil, 0.005″ polyester film, and 0.0015″ acrylic adhesive for a total construction of 0.0076″ +/- 5%. It delivers signal attenuation of 112 dB @ 100 MHz, peel strength of 40 oz./inch of width, and dielectric strength of 13,500 volts. An exceptional 300% elongation at break allows the tape to conform to irregular or curved surfaces while maintaining shielding continuity.
Key Properties
- Peel Strength: 40 oz./Inch of Width (ASTM-D-1000)
- Signal Attenuation: 112dB @ 100 MHz (ASTM D4935-99)
- Tensile Strength: 20,000 P.S.I. (ASTM-D-882)
- Dielectric Strength: 13,500 volts (ASTM D149)
- Total Thickness: 0.0076″ +/- 5% (ASTM-D-3652)
- Elongation at Break: 300% (ASTM-D-882)
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Aluminum Foil Thickness | 0.001″ | — |
| Polyester Film Thickness | 0.005″ | — |
| Adhesive Thickness | 0.0015″ | — |
| Release Liner | 90 lb. | — |
| Total Thickness | 0.0076″ +/- 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 | 20,000 P.S.I. | ASTM-D-882 |
| Elongation at Break | 300% | ASTM-D-882 |
Electrical Properties
| Property | Value | Test Method |
| Signal Attenuation | 112dB @ 100 MHz | ASTM D4935-99 |
| Dielectric Strength | 13,500 volts | ASTM D149 |
- Shielding electronic enclosures against EMI/RFI interference
- Maintaining shielding continuity across cable and connector assemblies
- Establishing grounding and static drain paths within electronic assemblies
- Protecting PCB and component assemblies from electromagnetic interference
- Providing high-attenuation shielding for sensitive electronic devices
Common industries: Electronics manufacturing, telecommunications, aerospace and defense electronics, consumer electronics, industrial controls.
A-61 PS is a laminate construction combining a 0.001″ aluminum foil with a 0.005″ polyester film carrier and a 0.0015″ acrylic pressure-sensitive adhesive, engineered specifically for EMI and RFI shielding of electronic enclosures and assemblies. The aluminum foil layer provides the conductive shielding path, the polyester film adds mechanical support and dimensional stability, and the acrylic adhesive system delivers a durable, lasting bond to enclosure and component surfaces during installation.
The tape is finished with a 90 lb. release liner to protect the adhesive and support clean die-cutting and converting, and is supplied in a silver finish. Under recommended storage conditions of 70°F (21°C) and 50% relative humidity, the material carries a shelf life of one year. Its notably high 300% elongation at break makes it well suited to wrapping contoured or irregular geometries without cracking or delaminating.
What differentiates A-61 PS from other tape grades in the line?
A-61 PS is the aluminum-foil grade in the line, pairing a heavier 0.005" polyester film with a 0.0076" total gauge to deliver 112 dB of attenuation at 100 MHz and a standout 300% elongation at break — far more conformable than the copper-foil grades such as C-13 PS or C-35 PS — while still holding a strong 40 oz./inch peel bond.
Why is peel adhesion important for A-61 PS?
A-61 PS is rated at 40 oz./inch of width peel strength (ASTM-D-1000), which keeps the tape firmly bonded to enclosure and component surfaces through handling, vibration, and thermal cycling. Reliable adhesion prevents edge lifting that would otherwise create gaps in the shielding path and degrade attenuation performance.
What is the storage range for A-61 PS?
The TDS specifies a shelf life of 1 year when stored at 70°F (21°C) and 50% relative humidity.
Is A-61 PS suitable for FCC-regulated EMI/RFI shielding environments?
No compliance standard is specified on the manufacturer's TDS for A-61 PS. Measured attenuation performance (112 dB @ 100 MHz per ASTM D4935-99) is provided, but suitability for a specific FCC-regulated application should be confirmed against the relevant project requirements.
How should A-61 PS be specified?
Specify grade (A-61 PS), thickness, color, adhesive type, liner type, compliance requirements, dimensional tolerances, and finished format.
