C-65 PS Copper Foil / Polyester Film EMI-RFI Shielding Tape (Solderable)
C-65 PS is a heavy-duty copper foil and polyester film laminate pressure-sensitive tape whose copper shield is solderable when done with care, combining a 0.0014″ copper foil, 0.005″ polyester film, and 0.001″ acrylic adhesive for a total thickness (without liner) of 0.0076″ +/- 10%. It delivers signal attenuation of 115 dB @ 100 MHz, peel strength of 32 oz/inch of width, and a high dielectric strength of 13,500 volts. As the heaviest-gauge grade in the solderable family, it offers the greatest mechanical robustness for demanding shielding applications.
Key Properties
- Peel Strength: 32 oz/inch of width (ASTM-D-1000)
- Signal Attenuation: 115dB @ 100 MHz (ASTM D4935-99)
- Dielectric Strength: 13,500 volts (ASTM D149)
- Total Thickness: 0.0076″ +/- 10% (PSTC-33)
- Release Liner: 90#
- Color: Copper
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Copper Foil Thickness | 0.0014″ | — |
| Polyester Film Thickness | 0.005″ | — |
| Adhesive Thickness | 0.001″ | — |
| Release Liner | 90# | — |
| Thickness (w/o liner) | 0.0076″ +/- 10% | PSTC-33 |
| 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 | 115dB @ 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
- Forming solderable shielding connections for fabricated ground points
- 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, PCB assembly and fabrication, industrial controls.
C-65 PS is a heavy-duty laminate combining a 0.0014″ copper foil with a 0.005″ polyester film carrier and a 0.001″ acrylic pressure-sensitive adhesive, engineered for demanding EMI and RFI shielding applications. The copper foil forms the conductive shielding layer, the heavy polyester film adds mechanical robustness, and the acrylic adhesive provides a strong, lasting bond to substrate surfaces.
Like other heavy-duty grades in the line, the copper shield can be soldered directly if done with care, enabling fabricated ground connections in addition to the pressure-sensitive bond. The tape is supplied with a 90# 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. The manufacturer’s TDS does not list tensile or elongation data for this grade.
What differentiates C-65 PS from other tape grades in the line?
C-65 PS is the heaviest-gauge solderable grade in the line at 0.0076" (without liner), combining a 13,500-volt dielectric rating with a solderable copper shield — heavier and more electrically robust than lighter solderable grades like C-20 PS — while still delivering 115 dB of attenuation at 100 MHz.
Why is peel adhesion important for C-65 PS?
C-65 PS carries a 32 oz/inch of width peel rating (ASTM-D-1000). Because the copper surface may also be soldered for a ground connection, dependable adhesion is essential to keep the tape firmly seated and in continuous electrical contact with the substrate both before and after soldering.
What is the storage range for C-65 PS?
The TDS specifies a shelf life of 1 year when stored at 70°F (21°C) and 50% relative humidity.
Is C-65 PS suitable for FCC-regulated EMI/RFI shielding environments?
No compliance standard is specified on the manufacturer's TDS for C-65 PS. Measured attenuation performance (115 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-65 PS be specified?
Specify grade (C-65 PS), thickness, color, adhesive type, liner type, compliance requirements, dimensional tolerances, and finished format.
