Laboratory Rubber Stoppers

Laboratory Rubber Stoppers

Custom Lab Stoppers Made to Your Specifications

Flexiparts manufactures custom laboratory rubber stoppers based on your drawings, samples, or dimensional requirements. We support custom stopper shapes, tapered profiles, hole configurations, and material options to suit different laboratory containers and equipment. Whether you need solid stoppers or designs with openings for tubing and instruments, each part is made to order according to your specifications. Share your requirements with us to discuss material selection, dimensions, and manufacturing feasibility.

Laboratory Rubber Stopper Specifications and Customization Options

Specification Options
Material Silicone, EPDM, NBR, and other suitable elastomers, subject to application requirements
Shape Tapered, cylindrical, stepped, or custom profiles
Design Solid, single-hole, or multi-hole configurations
Dimensions Custom top diameter, bottom diameter, height, and taper
Hole configuration Custom hole diameter, quantity, and position
Hardness Custom Shore A hardness based on design requirements
Color Available colors based on material and production requirements
Custom features Special profiles, cutouts, and drawing-specific dimensions

Final material and design options depend on the intended application, chemical exposure, and manufacturing feasibility.

Custom Laboratory Stopper Designs

Custom laboratory stoppers can be manufactured in different shapes and configurations to fit your containers and equipment. Options include tapered stoppers for compatible openings, solid designs for general closures, and single-hole or multi-hole stoppers for tubing and instrument connections. Dimensions, hole positions, and material properties can be specified to suit your assembly requirements.

Provide a technical drawing, CAD file, or physical sample so we can review the design and assess its suitability for production.

Material Selection for Laboratory Rubber Stoppers

The right elastomer depends on the chemicals involved, operating temperature, contact duration, and required sealing performance.

  • Silicone Rubber: Offers good flexibility and heat resistance for suitable laboratory applications. Chemical compatibility must be checked for the specific medium.
  • EPDM Rubber: Often considered for applications involving water, steam, and certain aqueous chemicals, subject to grade and operating conditions.
  • NBR Rubber: May suit applications requiring oil resistance, depending on the chemical and temperature involved.
  • Other Elastomers: Additional materials can be evaluated according to your chemical compatibility, hardness, and performance requirements.

Please specify the chemicals, concentrations, temperatures, and any cleaning or sterilization requirements when requesting a quote. Material suitability should be confirmed before use.

Applications of Custom Laboratory Rubber Stoppers

Custom laboratory stoppers can be designed for compatible laboratory containers, glassware, tubing connections, and equipment assemblies. Depending on the material and design, they may be used for sample containers, laboratory vessels, and setups requiring openings for tubes or probes.

The appropriate design depends on the container dimensions, sealing requirements, chemical exposure, and operating conditions.

FAQ About Laboratory Rubber Stoppers

1. Can you manufacture laboratory rubber stoppers from a drawing or sample?

Yes. You can provide a technical drawing, CAD file, or physical sample for evaluation. We review the dimensions, shape, material requirements, and design details before confirming production feasibility.

2. Can I customize the size and hole configuration?

Yes. Custom dimensions, taper, hole diameter, hole quantity, and hole position can be specified according to your drawing and application requirements.

3. Which rubber material is suitable for chemical applications?

Material selection depends on the specific chemical, concentration, temperature, and contact duration. Silicone, EPDM, NBR, and other elastomers may be considered, but compatibility should be verified for the intended conditions.

4. Can you provide stoppers for high-temperature or sterilization applications?

Requirements such as high-temperature exposure, autoclaving, or repeated sterilization must be reviewed against the selected material grade and product design. Please provide your operating conditions for evaluation.

How To Work with Us

The key to great custom parts is collaboration. As a custom molding manufacturer, our engineers will stay connected with you throughout the process, and deliver products that meet your expectations.

  1. Send us your 2D/3D files or product concept, for an accurate quote, please send us materials, order quantity, and surface requirements.
  2. We review your design and send you a clear cost within 24 hours.
  3. Our tooling team builds the mold to your specifications, then send you T1 samples for confirmation.
  4. Once the sample is approved, we run full production under strict quality control
  5. Your finished parts are packaged securely and shipped to your location on time.

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