Product Overview
Reliable custom rubber parts for industrial applications
Quick Answer
This solid rubber disc gasket is a no-hole circular flat seal for valve seats, pipe blanking, bolt insulation, anti-vibration pads and end-face sealing. Standard diameters range from 5 mm to 300 mm, with thickness from 1.0 mm to 20 mm. NBR, EPDM, NR, CR, Silicone, SBR and FKM compounds are available.
A solid rubber disc gasket is a no-hole flat circular seal used for full-face sealing, blanking, cushioning, insulation and vibration reduction. It is available in NBR, EPDM, NR, CR, Silicone, SBR and FKM compounds. Diameter, thickness, Shore A hardness, surface finish, color and packaging can be customized according to the application requirements.
Product Overview
The solid rubber disc gasket is a flat elastomeric washer without a center hole. It is used when the sealing surface must be fully covered rather than sealed only around a bore. The disc can be compressed between two mating faces to provide sealing, cushioning, vibration isolation, electrical insulation or pipe-end blanking. Standard diameter options range from 5 mm to 300 mm, with larger sizes available upon request. Thickness can be supplied from 1.0 mm to 20 mm. Depending on the required quantity and tolerance, the gasket can be die-cut, water-jet cut or compression molded. Material selection depends on media contact, temperature, compression load and compliance requirements.
Key Features
- Solid circular rubber disc structure with no center hole.
- Suitable for full-face sealing, pipe blanking, valve seats, bolt insulation and cushioning.
- Standard diameter range from 5 mm to 300 mm; larger sizes can be reviewed.
- Thickness range from 1.0 mm to 20 mm.
- Available in NBR, EPDM, NR, CR, Silicone, SBR and FKM compounds.
- Hardness range from 40 to 80 Shore A; standard 60 Shore A can be reviewed.
- Smooth surfaces on both faces as standard; embossed or textured surfaces are available upon request.
- Die-cut, water-jet cut or compression molded production options are available.
Size / Dimensions
| Dimension Item | Specification |
|---|---|
| Shape | Solid circular disc with no center hole |
| Outer Diameter (OD) | 5 mm to 300 mm; larger sizes available upon request |
| Thickness | 1.0 mm to 20 mm |
| Surface Finish | Smooth on both faces as standard; embossed or textured finish available upon request |
| Dimensional Tolerance | Available upon request |
| Custom Diameter and Thickness | Available according to drawing or physical sample |
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Solid Rubber Disc Gasket |
| Material | NBR, EPDM, NR, CR, Silicone, SBR, FKM or application-specific rubber compound |
| Hardness | 40–80 Shore A; standard 60 Shore A can be reviewed |
| Color | Black as standard; red, white, grey or custom colors available according to compound |
| Manufacturing Process | Die cutting, water-jet cutting or compression molding |
| Application | Flat sealing, valve seats, pipe blanking, bolt insulation, cushioning and anti-vibration applications |
| Customization | Diameter, thickness, rubber material, Shore A hardness, color, surface finish, dimensional tolerance, marking and packaging can be reviewed according to the application requirements. |
| MOQ | Contact us for details |
| Tooling | Tooling cost depends on the drawing, quantity and manufacturing process |
| Sample Availability | Available upon request |
| Lead Time | Available upon request |
| Compliance Options | RoHS and REACH options are available. FDA-grade Silicone or EPDM and WRAS material options can be reviewed for applicable applications. |
Material Selection Guide
| Material | Typical Temperature Range | Key Characteristics | Recommended Applications |
|---|---|---|---|
| NBR | -40°C to +100°C | Oil resistance, abrasion resistance and good compression stability | Oil-service valves, hydraulic systems, pipe blanking and industrial sealing |
| EPDM | -50°C to +150°C | Water, steam, ozone, UV and weather resistance | Water valves, HVAC systems, outdoor sealing and drinking-water material options |
| NR | -55°C to +80°C | High elasticity, resilience and impact absorption | Anti-vibration pads, machine mounts and cushioning applications |
| CR | -40°C to +120°C | Balanced weather resistance, moderate oil resistance and mechanical durability | Marine, electrical, refrigeration and outdoor industrial applications |
| Silicone | -60°C to +250°C | Wide temperature capability and flexible sealing behavior | Food processing, pharmaceutical equipment and high-temperature sealing |
| FKM | -20°C to +200°C | Chemical resistance, fuel resistance and high-temperature oil resistance | Chemical processing, aggressive media and high-temperature industrial service |
Applications
Solid rubber disc gaskets are used where a flat circular elastomer component must seal, block, cushion or isolate a mating surface. Common applications include water tap washers, valve seat seals, pipe-end blanking discs, flange blanking pads, bolt isolation washers, electrical insulation washers, anti-vibration mounting pads, buffer pads and end-face compression seals. NBR can be reviewed for oil and hydraulic media. EPDM is suitable for water, outdoor and HVAC applications. NR is commonly selected for vibration damping and impact absorption. Silicone and FKM can be evaluated for higher-temperature or specialized media requirements.
Customization Options
Custom solid rubber disc gaskets can be manufactured according to 2D drawings, OD × thickness specifications, CAD files or physical samples. Buyers can specify the diameter, thickness, compound, Shore A hardness, color, surface finish, tolerance, certification requirement and packaging method. Die cutting is suitable for many standard flat disc requirements. Water-jet cutting can support prototypes and non-standard sizes without dedicated cutting tooling. Compression molding can be reviewed for tighter dimensional control, smoother edges or high-specification OEM applications. Material selection depends on contact media, operating temperature, compression rate, load conditions and expected service environment.
What Information Should Buyers Provide for a Quote?
- Product drawing or physical sample
- Outer diameter
- Thickness
- Rubber material
- Shore A hardness
- Color
- Surface finish requirement
- Dimensional tolerance
- Operating temperature
- Contact media
- Compression load or compression rate
- Application environment
- Required quantity
- Estimated annual volume
- Compliance requirements
- Packaging requirements
FAQ
What is a solid rubber disc gasket used for?
A solid rubber disc gasket is used when a full circular face must be sealed, cushioned, insulated or blanked off. It can be used as a valve washer, pipe blanking disc, bolt isolation washer, anti-vibration pad, buffer pad or end-face compression seal.
What is the difference between a solid rubber disc gasket and a ring gasket?
A solid rubber disc gasket has no center hole and covers the full mating surface. A ring gasket has a center bore and seals around a pipe or passage. The solid disc is selected when the application requires complete surface coverage or full-face blanking.
How should buyers select NBR, EPDM or Silicone?
NBR is suitable for petroleum oils, hydraulic fluids and grease contact. EPDM can be reviewed for water, hot water, steam, ozone and outdoor exposure. Silicone is suitable for broad temperature requirements and food or pharmaceutical material options when an applicable grade is selected.
Can the diameter and thickness be customized?
Yes. Diameter, thickness, hardness, color, surface texture and tolerance can be customized according to the drawing or sample. Standard diameter requirements range from 5 mm to 300 mm, and larger sizes can be reviewed according to the application.
What compression rate is suitable for a solid rubber disc gasket?
The compression rate depends on the compound, hardness, thickness and application load. Many flat rubber sealing applications are reviewed around controlled compression rather than excessive crushing. Buyers should provide the clamping method and working conditions so the material and hardness can be evaluated.
Are FDA, WRAS, RoHS or REACH options available?
RoHS and REACH options are available for applicable compounds. FDA-grade Silicone or EPDM and WRAS material options can be reviewed when food-contact, drinking-water or regulated applications are required. Documentation is available upon request for confirmed material grades.
Request a Custom Quote
Send your OD × thickness specification, drawing, CAD file or physical sample for a technical review of your solid rubber disc gasket. Please include the material, hardness, contact media, temperature range, compression condition, quantity, annual demand and any FDA, WRAS, RoHS or REACH documentation requirements.
