C-58 PS Copper Foil / Polyester Film EMI-RFI Shielding Tape
C-58 PS is a copper foil and polyester film laminate pressure-sensitive tape built from a 0.0007″ copper foil, 0.005″ polyester film, and 0.001″ acrylic adhesive for a total thickness (without liner) of 0.0069″ +/- 10%. It delivers signal attenuation of 105 dB @ 100 MHz, peel strength of 32 oz./inch of width, and a high dielectric strength of 13,500 volts. The heavier polyester film layer adds mechanical robustness relative to thinner grades in the line.
Key Properties
- Peel Strength: 32 oz./inch of width (ASTM-D-1000)
- Signal Attenuation: 105dB @ 100 MHz (ASTM D4935-99)
- Dielectric Strength: 13,500 volts (ASTM D149)
- Total Thickness: 0.0069″ +/- 10% (ASTM-D-3652)
- Release Liner: 90 lb.
- Color: Copper
We want to help!
Enter your information and we'll get you in touch with our knowledgable staff. We know how important to the right product for your project.
Request a Consultation
- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Copper Foil Thickness | 0.0007″ | — |
| Polyester Film Thickness | 0.005″ | — |
| Adhesive Thickness | 0.001″ | — |
| Release Liner | 90 lb. | — |
| Thickness (w/o liner) | 0.0069″ +/- 10% | ASTM-D-3652 |
| Color | Copper | — |
| Shelf Life | 1 year @ 70°F(21°C)/50% R.H. | — |
Mechanical Properties
| Property | Value | Test Method |
| Peel Strength | 32 oz./inch of width | ASTM-D-1000 |
Electrical Properties
| Property | Value | Test Method |
| Signal Attenuation | 105dB @ 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.
C-58 PS is a laminate construction combining a 0.0007″ copper foil with a heavier 0.005″ polyester film carrier and a 0.001″ acrylic pressure-sensitive adhesive, engineered for EMI and RFI shielding of electronic enclosures and assemblies. The copper foil forms the conductive shielding layer, the thick polyester film adds mechanical durability, and the acrylic adhesive provides a strong, lasting bond to substrate surfaces.
The tape is supplied with a 90 lb. release liner in a copper finish and carries a shelf life of one year when stored at 70°F (21°C) and 50% relative humidity. Its high 13,500-volt dielectric strength makes it well suited to applications where strong electrical isolation between shielding and adjacent conductive surfaces is important. The manufacturer’s TDS does not list tensile or elongation data for this grade.
What differentiates C-58 PS from other tape grades in the line?
C-58 PS pairs a thin 0.0007" copper foil with a heavier 0.005" polyester film for a 13,500-volt dielectric rating, matching the highest electrical isolation grades in the line such as A-61 PS while remaining a copper-shielded product, giving strong isolation performance without the added bulk of heavier-gauge copper grades.
Why is peel adhesion important for C-58 PS?
C-58 PS carries a 32 oz./inch of width peel rating (ASTM-D-1000). Because this grade's TDS does not report tensile or elongation data, dependable adhesion is the primary property ensuring the tape stays securely bonded and maintains uninterrupted shielding contact with the substrate over the service life of the application.
What is the storage range for C-58 PS?
The TDS specifies a shelf life of 1 year when stored at 70°F (21°C) and 50% relative humidity.
Is C-58 PS suitable for FCC-regulated EMI/RFI shielding environments?
No compliance standard is specified on the manufacturer's TDS for C-58 PS. Measured attenuation performance (105 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 C-58 PS be specified?
Specify grade (C-58 PS), thickness, color, adhesive type, liner type, compliance requirements, dimensional tolerances, and finished format.
