Ningbo Zhonggao Rubber & Plastic Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of fkm rubber gaskets in China. The company has world-leading production equipment and strong manufacturing capabilities. Welcome to wholesale custom made fkm rubber gaskets from our factory.
FKM Rubber Gaskets
FKM rubber gaskets are fluoroelastomer sealing components designed for applications requiring resistance to elevated temperatures, oils, fuels, lubricants, and compatible chemical media. They are available in different compounds, hardnesses, thicknesses, shapes, and dimensions to meet specific sealing and equipment requirements.
FKM Rubber Gasket Specifications
|
Parameter |
Typical Reference |
|
Material |
FKM / Fluoroelastomer |
|
Hardness |
70 ± 5 Shore A |
|
Temperature Range |
Approx. -20°C to +200°C |
|
Short-Term Temperature |
Up to approx. +230°C |
|
Tensile Strength |
≥ 10 MPa |
|
Elongation at Break |
≥ 150% |
|
Compression Set |
≤ 25% |
|
Density |
Approx. 1.80–2.00 g/cm³ |
|
Oil & Fuel Resistance |
Volume Change: approx. -5% to +10%* |
|
Chemical Resistance |
Volume Change: approx. -5% to +15%* |
|
Ozone & Weather Resistance |
Ozone Exposure: 50–200 pphm, no cracking under applicable test conditions* |
|
Thickness |
Approx. 0.5–10 mm |
|
Mold Accuracy |
Within ±0.01 mm |
*These values are typical reference ranges and may vary according to FKM compound, hardness, gasket geometry, test medium, test method, and applicable standard. Final specifications should be confirmed according to the selected compound and application.
Custom FKM Gasket Manufacturing
We manufacture custom FKM gaskets based on your drawing, sample, equipment, and working conditions.
Custom Size & Shape
We can produce:
- Custom ID, OD, length, width, and thickness
- Ring, square, rectangular, oval, washer, and flange gaskets
- Irregular shapes, holes, slots, grooves, and cutouts
FKM Material
FKM compound and hardness can be selected according to:
- Temperature
- Chemical or fluid contact
- Pressure
- Compression
- Static or dynamic sealing conditions
Drawing / Sample
You can provide:
- CAD or technical drawings
- Dimensions and tolerances
- Material requirements
- Existing gasket samples
We can use these details to evaluate and develop the gasket.
Mold & Production
Custom molds can be developed for molded gaskets. Available processes include:
- Compression molding
- Transfer molding
- Injection molding
- Die cutting
Samples can be produced for approval before mass production.
OEM Service
We support custom:
- Dimensions
- Material and hardness
- Packaging
- Labels
- Part numbers
- OEM production with customer-provided molds
For customer-provided molds, the customer's project holds the exclusive right to use the molds, while Zhonggao maintains confidentiality to protect customer drawings and intellectual property.
FKM Gasket Applications
FKM rubber gaskets are used for sealing equipment and assemblies exposed to demanding temperature, fluid, and environmental conditions.
- Automotive & Fuel Systems
- Oil & Gas Equipment
- Hydraulic & Pneumatic Equipment
- Pumps & Valves
- Chemical Processing Equipment
- Industrial Machinery
FKM Gasket Manufacturing Capability
Zhonggao supports prototype development, short-term production, and large-volume FKM gasket orders through 20 production lines and a monthly production capacity of up to 10 million rubber parts. Production quantities such as 5,000, 50,000, or 500,000 pieces can be reviewed according to gasket design, tooling, material, and production schedule.
FKM Gasket Quality Control
-
Raw Material Inspection
FKM raw materials are checked against the approved compound and hardness requirements before production to verify material conformity.
-
Dimensional Inspection
Critical ID, OD, thickness, profiles, holes, cutouts, and other dimensions are inspected against the approved drawing, specifications, and applicable tolerances.
-
Physical Property Testing
Applicable tensile strength, elongation, and compression-set properties are tested according to the approved product requirements and relevant test methods.
-
Appearance Inspection
Finished gaskets are inspected for surface defects, edge conditions, cracks, blisters, foreign matter, warping, deformation, and other visible defects that could affect installation or sealing.
-
Finished Product & Batch Inspection
Finished products are checked against approved specifications before packing, while production, inspection, and applicable traceability records support consistency across repeat orders.
Zhonggao's quality system includes dedicated QC personnel, laboratory testing equipment, raw-material inspection, and finished-product inspection, with IATF 16949, ISO 9001, ISO 14001, and ISO 45001 certifications.
B2B Ordering & Supply Support
The supply process can be arranged around the buyer's approved specifications, production quantity, delivery schedule, packaging requirements, and repeat-order needs.
- Sample Approval
- MOQ Discussion
- Production Scheduling
- Lead Time Confirmation
- Custom Packaging
- Product Labeling
- International Shipment
- Repeat-Order Support
Production & Supply Information
- Prototype & Sample Lead Time: Prototype and sample production is available before mass production, with a typical sample lead time of 3–15 days.
- Tooling: Custom mold development for molded gasket designs.
- MOQ: MOQ is flexible according to gasket size, process, tooling, and project requirements.
- Mass Production Lead Time: Small, medium, and large-volume orders are supported with a typical lead time of 10–30 days.
- Inspection Documents: Material and inspection reports available according to project requirements.
- Packaging: Bulk, bagged, labeled, barcode, or customer-specified packaging.
- Repeat Orders: Approved drawings, tooling, and production specifications can be retained for repeat production.
- Quality Issues: A 1-year quality guarantee is provided for qualified product quality issues.
FAQ
Q: What Information Should I Provide for a Custom FKM Gasket Quote?
A: Provide the gasket drawing or sample, dimensions, FKM material or compound requirement, hardness, quantity, operating temperature, sealing medium, application, and any specific tolerance or inspection requirements. If some specifications are unavailable, the application conditions can be provided for technical evaluation.
Q: Can You Manufacture FKM Gaskets From a Customer-Supplied Sample?
A: Yes. An existing gasket or physical sample can be used as a reference for dimensional evaluation, material discussion, tooling development, and production. A drawing or additional application information can also be provided when available.
Q: How Do I Choose the Right FKM Compound for a Gasket?
A: The appropriate FKM compound depends on operating temperature, contacting media, pressure, sealing type, hardness, and expected service conditions. Material selection should be confirmed according to the complete application rather than the FKM designation alone.
Q: What Hardness Options Are Available for FKM Rubber Gaskets?
A: FKM gaskets can be manufactured in different hardness levels according to the gasket geometry, compression requirements, mating surfaces, and application conditions. 70 Shore A is a common reference, while the final hardness should be confirmed for the specific gasket.
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