482F-75
482F-75 is a 75 durometer fluorosilicone elastomer filled with silver-plated nickel, available as fully cured electrically conductive sheet stock or as a ready-to-mold compound. It delivers a volume resistivity of 0.001 ohm-cm (0.005 max specification per ASTM D991) and a thermal stability range of -60°C to 200°C. The material is engineered to provide high electrical conductivity along with excellent resistance to fuels and solvents. Data was generated with the Varox catalyst system.
Key Properties
- Hardness Shore A (68–82 range): 75 (ASTM D2240)
- Tensile Strength (200 minimum): 265 psi (ASTM D412)
- Elongation % (100 min): 285% (ASTM D412)
- Volume Resistivity ohm-cm (0.005 max): .001 ohm-cm (ASTM D991)
- Specific Gravity: 4.3 (ASTM D792)
Thermal Stability Range: -60°C – 200°C
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Color | Tan or Gray | — |
| Specific Gravity (Report) | 4.3 | ASTM D792 |
Mechanical Properties
| Property | Value | Test Method |
| Shore A (68–82 range) | 75 | ASTM D2240 |
| Tensile psi (200 minimum) | 265 psi | ASTM D412 |
| Elongation % (100 min) | 285% | ASTM D412 |
| Tear “B” ppi (30 min) | 40 | ASTM D624 |
Thermal Properties
| Property | Value | Test Method |
| Thermal Stability Range | -60°C – 200°C | — |
Electrical Properties
| Property | Value | Test Method |
| Volume Resistivity ohm-cm (0.005 max) | .001 ohm-cm | ASTM D991 |
Environmental Performance
| Property | Value | Test Method |
| Shelf Life — Uncatalyzed | Indefinite (may need freshening after 1–2 years) | — |
| Shelf Life — Catalyzed | 6 months | — |
- Electrically conductive EMI shielding gaskets requiring simultaneous fuel and solvent resistance from a fluorosilicone base
- Conductive elastomeric seals for enclosures exposed to fuels, hydraulic fluids, or aggressive solvents
- Press-molded conductive components for custom shielding geometries requiring silver-plated nickel filler
- Sheet stock die-cut shielding gaskets where high specific gravity silver-plated nickel filler is required for the application
- Conductive seals operating across a thermal range of -60°C to 200°C in chemically aggressive environments
Common industries: Aerospace, defense, electronics, industrial equipment, automotive.
482F-75 is a 75 Shore A silver-plated nickel filled fluorosilicone shielding elastomer, uniquely differentiated from the nickel-coated graphite filled 502F-series by its filler type and notably higher specific gravity of 4.3 — the highest in this product group — reflecting the density of the silver-plated nickel particles.
It is available as fully cured electrically conductive sheet stock or as a ready-to-mold compound, and is designed to provide high electrical conductivity alongside excellent resistance to fuels and solvents inherent to the fluorosilicone base. Data was generated with the Varox catalyst system.
The material achieves a volume resistivity of 0.001 ohm-cm well within the 0.005 max specification (ASTM D991), tensile strength of 265 psi, elongation of 285%, and Tear “B” of 40 ppi (ASTM D624). Raw material is available catalyzed and ready for press cure molding. Uncatalyzed shelf life is indefinite (may need freshening after 1–2 years); catalyzed shelf life is 6 months. Cold storage will extend shelf life. No shielding effectiveness value is listed on the TDS for this grade.
What differentiates 482F-75 from 502F-50, 502F-60, and 502F-80?
482F-75 is filled with silver-plated nickel rather than the nickel-coated graphite used in the 502F-series, resulting in a specific gravity of 4.3 — significantly higher than the 2.13–2.37 range of the 502F grades. It achieves a volume resistivity of 0.001 ohm-cm within a 0.005 max specification, the tightest resistivity specification in this product group. It uses the Varox catalyst system versus DBPH used for 502F-60 and 502F-80. No shielding effectiveness value is listed on the TDS for 482F-75. It is also available in Tan or Gray, versus Dark Gray for the 502F-series.
Why is compression set critical for this material?
As a conductive elastomeric shielding gasket material, 482F-75 must maintain intimate contact with mating surfaces to sustain volume resistivity of 0.001 ohm-cm and electrical conductivity over its service life. Compression set resistance ensures the gasket does not permanently deform under sustained closure load in chemically aggressive environments, preserving the conductive interface. No compression set value is listed on the TDS for this grade.
What is the operating temperature range for 482F-75?
The thermal stability range for 482F-75 is -60°C to 200°C as listed on the TDS.
Is 482F-75 suitable for regulated or military environments?
No compliance standards or military specifications are listed on the manufacturer's TDS for this material.
How should 482F-75 be specified?
Specify grade (482F-75), supply form (sheet stock or compound), thickness, color (Tan or Gray), compliance requirements, dimensional tolerances, and finished format.
