A-41 PS Aluminum Foil / Polyester Film EMI-RFI Shielding Tape
A-41 PS is an aluminum foil and polyester film laminate tape engineered for EMI and RFI shielding, providing signal attenuation of 112 dB @ 100 MHz from a 0.0056″ +/- 10% construction built with a 0.001″ aluminum foil, 0.003″ polyester film, and 0.0015″ acrylic pressure-sensitive adhesive. It delivers a peel strength of 32 oz./inch of width minimum and a dielectric strength of 10,200 volts, with a tensile strength of 12,860 P.S.I. and 90% elongation at break. The tape is supplied with a 90 lb. release liner.
Key Properties
- Peel Strength: 32 oz./inch of width min. (ASTM-D-1000)
- Signal Attenuation: 112 dB @ 100 MHz (ASTM D4935-99)
- Tensile Strength: 12,860 P.S.I. (ASTM-D-882)
- Dielectric Strength: 10,200 volts (ASTM D149)
- Total Thickness: 0.0056″ +/- 10% (ASTM-D-3652)
- Elongation at Break: 90% (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 | 0.003″ | — |
| Adhesive Thickness | 0.0015″ | — |
| Release Liner | 90 lb. | — |
| Total Thickness | 0.0056″ +/- 10% | ASTM-D-3652 |
| Color | Silver | — |
| Shelf Life | 1 year @ 70°F(21°C)/50% R.H. | — |
Mechanical Properties
| Property | Value | Test Method |
| Peel Strength | 32 oz./inch of width min. | ASTM-D-1000 |
| Tensile Strength | 12,860 P.S.I. | ASTM-D-882 |
| Elongation at Break | 90% | ASTM-D-882 |
Electrical Properties
| Property | Value | Test Method |
| Signal Attenuation | 112 dB @ 100 MHz | ASTM D4935-99 |
| Dielectric Strength | 10,200 volts | ASTM D149 |
- 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-41 PS is a pressure-sensitive laminate built from a 0.001″ aluminum foil, a 0.003″ polyester film carrier, and a 0.0015″ acrylic adhesive system, delivering 112 dB of signal attenuation at 100 MHz within a 0.0056″ +/- 10% total construction. The tape is intended for high-attenuation EMI and RFI shielding of electronic enclosures, cables, connectors, and PCB assemblies where sensitive electronics require maximum shielding performance.
Its 10,200-volt dielectric strength and 12,860 P.S.I. tensile strength, combined with 90% elongation at break, give the tape a favorable balance of electrical insulation margin and conformability during application and converting. The tape 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.
What differentiates A-41 PS from other tape grades in the line?
A-41 PS matches A-16 PS's 112 dB @ 100 MHz signal attenuation — the highest in the A-Series line — while adding a substantially higher 10,200-volt dielectric strength and thicker 0.0056" construction. Its 90% elongation at break also gives it considerably better conformability than the thinner, stiffer A-16 PS, making it suited to applications requiring maximum attenuation with improved handling characteristics.
Why is peel adhesion important for A-41 PS?
Peel adhesion determines how securely A-41 PS remains bonded to the enclosure, cable, or component surface after installation. A peel strength of 32 oz./inch of width minimum helps the tape resist edge lift and adhesive failure through handling and long-term service, preserving a continuous shielding path.
What is the storage range for A-41 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-41 PS suitable for FCC-regulated EMI/RFI shielding environments?
No compliance standard is stated on the A-41 PS TDS, so suitability for FCC-regulated EMI/RFI shielding environments cannot be confirmed from the manufacturer's documentation for this specific grade.
How should A-41 PS be specified?
Specify grade (A-41 PS), thickness, color, adhesive type, liner type, compliance requirements, dimensional tolerances, and finished format.
