Cork gaskets are a proven sealing solution for low-to-medium pressure applications where compressibility, vibration damping, and conformability to irregular surfaces are required. CGIM LLC manufactures custom cork gaskets and cork rubber gaskets from sheet material to match your exact dimensions, tolerances, and application requirements. Whether you need a one-time prototype or a recurring production run, our team is equipped to cut, produce, and deliver cork gaskets that perform as intended.
Key Properties of Cork Gaskets
Cork gasket material offers a combination of properties that make it well suited for a wide range of industrial sealing applications. When bonded with rubber, cork sheet material becomes more durable and resilient, making it one of the most reliable soft gasket materials available for low-pressure environments.
| Property | Description |
|---|---|
| Compressibility and Recovery | Cork gaskets compress under bolt load and recover when load is released, creating a reliable seal even on flanges with surface irregularities or uneven bolt loading. |
| Vibration and Noise Dampening | The cellular structure of cork naturally absorbs vibration and reduces transmitted noise, making cork gaskets a practical choice for mechanical enclosures, covers, and housings. |
| Oil and Fluid Resistance | Cork rubber gaskets, particularly those bonded with nitrile or neoprene, offer good resistance to oils, fuels, and common industrial fluids. |
| Thermal Insulation | Cork has inherently low thermal conductivity, providing a degree of insulation in applications where heat transfer is a concern. |
| Conformability | Cork gaskets conform to irregular or imperfect mating surfaces, reducing the need for high bolt torque to achieve a proper seal. |
| Lightweight | Cork is one of the lightest gasket materials available, which is an advantage in applications where overall component weight is a factor. |
Cork Gasket Sheet Options
Cork gasket sheet material is available in several formulations, each pairing cork granules with a different rubber binder to achieve specific performance characteristics. CGIM LLC works with cork rubber gasket sheet in the grades best suited to the requirements of the application. Common options include:
Neoprene Bonded Cork
Nitrile Bonded Cork
Silicone Bonded Cork
Cork Gasket Applications
Cork gaskets and cork rubber gaskets are used across a wide range of industries and equipment types. They are particularly well suited to applications with low-to-medium bolt loads, irregular sealing surfaces, or requirements for vibration isolation. Common applications include:
- Valve covers and rocker arm covers
- Oil pans and crankcase covers
- Sump covers and access doors
- Pump and compressor housings
- Electrical transformer and switchgear enclosures
- Industrial equipment inspection covers and lids
- HVAC components requiring vibration and noise isolation
- Engine and drivetrain covers in industrial and off-highway equipment
- General flange and cover sealing in OEM assemblies
Cork rubber gaskets are ideal for applications where conformability matters more than high compressive strength, and where a reliable seal is needed without extreme bolt torque.
CGIM LLC Produces Custom Cork Gaskets
Off-the-shelf cork gaskets are rarely the right fit for OEM and fabrication applications. CGIM LLC manufactures custom cork gaskets and custom cork gasket sheet parts to your exact specifications, supporting everything from initial prototypes to long-term production supply.
We work directly from customer drawings, samples, or specifications. If your team has a CAD file, a legacy part, or a sketch, our team can produce a cork gasket that fits your equipment and seals as expected.
In-House Cork Gasket Cutting Capabilities
Precise cork gasket cutting is critical to achieving proper fit, consistent performance, and clean installation. CGIM LLC uses several in-house cutting methods depending on part geometry, volume, and material thickness:
- Flash Cutting: Fast and cost-effective for short runs, prototypes, and simple geometries. Ideal for quickly producing cork gaskets from sheet material with minimal setup.
- Die Cutting: The preferred method for high-volume production. In-house die making allows us to produce precision die-cut cork gaskets with repeatable accuracy and consistent part quality run after run.
- Waterjet Cutting: Used for complex geometries, tighter tolerances, or thicker cork rubber gasket sheet materials where flash cutting or die cutting is not the best fit.
PSA (pressure sensitive adhesive) backing is available on cork gaskets for applications requiring easy, accurate installation.
Whether you need a custom cork gasket in low quantities or ongoing production volume, CGIM LLC has the equipment and experience to deliver accurately cut parts on time and at competitive prices.
Get A Quote Today
Need a custom cork gasket? Submit a drawing, sample, or spec to our team and we will provide a quote. Request a Quote to get started.