AG-613-55LT Nickel Coated Graphite Silicone
Style AG-613-55LT is an electrically-conductive shielding gasket material that is a 55 durometer (Shore A) nickel-coated graphite-filled silicone elastomer which protects electronic equipment and produces shielding against radio frequency interference (RFI) and electromagnetic interference (EMI). AG-613-55LT nickel-coated graphite-filled silicone is resistant to very low temperatures and displays low levels of outgassing in environments with high vacuum. It has a volume resistivity of .01 ohm/cm with a shielding effectiveness of greater than 113 dB.
AG-613-55LT has a TML (Total Mass Loss) of 0.15% and CVCM of 0.05% which are both within the limits that NASA typically uses. The standard test method used for both of these properties (TML and CVCM) is ASTM E595. This nickel-coated graphite-filled silicone can be converted into die-cut and water jet cut parts or provided as sheets of different sizes and continuous rolls. AG-613-55LT is available in both sheet stock and continuous 15” wide rolls. The material can be provided in a dark gray color.
| Data | Usual Values |
|---|---|
| Shore A (50 – 60 Range) | 55 |
| Tensile psi (125 Minimum) | 155 psi |
| Elongation (Minimum 200) | 300% |
| Specific Gravity (Report) | 1.85 |
| Volume Resistivity ohm/cm (0.04 Maximum) | .05 ohm/cm |
| Shielding Effectiveness 20MHZ-10GHZ (E-Field) | Greater than 113 dB |
| Total Mass Loss (TML) (Report) | 0.15% |
| Color | Dark Gray |
| TR-10 °C Low Temp Capability (Report) | -70°C |
The chart below compares the electrically-conductive nickel-coated graphite-filled silicone to other filler materials that act as electromagnetic interference (EMI)/radio frequency interference (RFI) shielding. We offer the nickel-coated graphite-filled silicone which acts as a great sealant against environmental factors and large temperatures ranges. When compared to other fillers such as silver-coated copper, silver-coated glass, and silver-coated aluminum, nickel-coated graphite has a conductivity that is comparable to its silver counterparts.
| Filler | Conductivity | Typical Volume Resistivity (V.R.) |
Cost |
|---|---|---|---|
| Silver | Extremely Conductive | .0009 ohms/cm | Most Expensive |
| Silver Coated Aluminum | Super Conductive | .003 ohms/cm | More Expensive |
| Silver Coated Copper | Super Conductive | .001 ohms/cm | Expensive |
| Silver Coated Glass | Very Conductive | .006 ohms/cm | Less Expensive |
| *Nickel Coated Graphite | Conductive | .01 ohms/cm | Least Expensive* |
This information is furnished as a guide for selecting materials. Atlantic Gasket Corp. disclaims liability for results or use of this information. It is the customer’s responsibility to obtain and test samples when determining suitability of material for a particular application.
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