Technical Rubberized Cork DC100-314
Product Overview
Technical Rubberized Cork DC100-314 is a synthetic rubber-bound technical cork composite (Cork Grade DC100, granule size 0.5–2 mm) designed for demanding flange gasket, oil-resistant seal, and special-profile applications. It achieves a durometer range of 55–75 Shore A, compressibility of 25%–45% @ 400 PSI, and recovery of 70% min per ASTM F36. The material is rated from -4°F to 230°F and provides controlled fluid resistance to petroleum oils and fuel per ASTM F146.
Key Properties
- Durometer / Hardness (Shore A): 55 – 75 — ASTM D2240
- Compressibility @ 400 PSI: 25% – 45% — ASTM F36
- Recovery: 70% min — ASTM F36
- Low Temperature Limit: -4°F — —
- High Temperature Limit: 230°F — —
- Cork Granule Size: 0.5 – 2 mm — —
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Material / Substrate | Technical Rubberized Cork | — |
| Color | Natural | — |
| Binder | Synthetic Rubber | — |
| Cork Grade | DC100 (314) | — |
| Cork Granule Size | 0.5 – 2 mm | — |
| Thickness | 1/32″, 1/16″, 3/32″, 1/8″, 3/16″, 1/4″ | — |
Mechanical Properties
| Property | Value | Test Method |
| Durometer / Hardness (Shore A) | 55 – 75 | ASTM D2240 |
| Compressibility @ 400 PSI | 25% – 45% | ASTM F36 |
| Recovery | 70% min | ASTM F36 |
Thermal Properties
| Property | Value | Test Method |
| Low Temperature Limit | -4°F | — |
| High Temperature Limit | 230°F | — |
Aging Performance — Fluid Immersion (ASTM F146)
| Property | Value | Test Method |
| Volume Change After Aging, ASTM #1, 70 Hours @ 100°C | -10% to 20% | ASTM F146 |
| Volume Change After Aging, Fuel A, 22 Hours @ RT | 0% to 30% | ASTM F146 |
| Volume Change After Aging, IRM 903, 70 Hours @ 100°C | 0% to 80% | ASTM F146 |
- Flange gaskets in industrial piping and equipment requiring oil-resistant, compressible cork composite
- Oil-resistant seals and gaskets in automotive and industrial assemblies with petroleum fluid exposure
- Special shapes and profiles for precision gasketing requirements across a moderate temperature range
- Anti-skid and high-friction sealing pads in industrial equipment assemblies
- General technical gasketing applications requiring durable cork/rubber composite performance
Common industries: Industrial equipment, automotive, oil and gas, piping systems, general manufacturing.
Technical Rubberized Cork DC100-314 is a synthetic rubber-bound cork composite at 55–75 Shore A, formulated for demanding technical gasketing applications including flange gaskets, oil-resistant seals, and special shapes or profiles for specific engineering requirements. The DC100 series represents a higher-performance tier of rubberized cork engineered for a broad service temperature range and quantified fluid resistance.
DC100-314 uses a cork granule size of 0.5–2 mm — a finer-to-medium range compared to DC100-312 — and carries a low temperature limit of -4°F, which is significantly warmer than the DC100-312 grade and should be evaluated carefully for cold-weather or freeze-cycle applications.
Fluid aging per ASTM F146 shows volume change of -10% to 20% after ASTM #1 oil (70 hours @ 100°C) and 0% to 30% after Fuel A (22 hours @ RT). IRM 903 oil immersion (70 hours @ 100°C) produces 0% to 80% volume change, indicating more significant swelling in severe oil environments. Other cork grades are available by special request; longer lead times and minimum orders will apply.
What differentiates Technical Rubberized Cork DC100-314 from the DC100-312 and SP52 grades?
Technical Rubberized Cork DC100-314 shares the same synthetic rubber binder, durometer range (55–75 Shore A), and compressibility profile as DC100-312, but uses a finer-to-medium cork granule size (0.5–2 mm vs. 1–2 mm) and has a significantly warmer low temperature limit of -4°F (vs. -40°F for DC100-312). DC100-314 is the appropriate selection when finer granule texture is preferred; DC100-312 should be selected when cold-temperature performance below -4°F is required.
Why is compressibility an important property for technical cork composite gaskets?
Compressibility determines how much the gasket deflects under a given seating load, which governs how well it conforms to flange faces or mating surfaces to create a seal. Too little compressibility means the gasket cannot fill surface imperfections; too much means it may extrude or bottom out under bolt torque. Technical Rubberized Cork DC100-314 achieves 25%–45% compressibility @ 400 PSI per ASTM F36, providing a controlled deflection range suited for demanding flange and oil-resistant gasket applications.
What is the service temperature range for Technical Rubberized Cork DC100-314?
Technical Rubberized Cork DC100-314 has a low temperature limit of -4°F and a high temperature limit of 230°F, as listed on the TDS.
Is Technical Rubberized Cork DC100-314 suitable for oil and fuel contact environments?
Yes. The TDS provides fluid aging data per ASTM F146 confirming controlled volume change in ASTM #1 oil (-10% to 20%), Fuel A (0% to 30%), and IRM 903 oil (0% to 80%) exposure. No specific compliance standards are cited on the TDS.
How should Technical Rubberized Cork DC100-314 be specified?
Specify grade (Technical Rubberized Cork DC100-314), thickness, dimensional tolerances, and finished format. Note that other cork grades are available by special request with longer lead times and minimum order requirements.
