Product Overview

XINXIA aluminum foil heat seal discs are designed for sealing laboratory reagent tubes with a compatible heat sealing process. Each disc can be made to match the tube opening, helping manufacturers and laboratory supply companies integrate foil sealing into their packaging workflow. Custom diameters and shapes are available based on the tube drawing, sealing equipment, and handling requirements.

A correctly selected foil seal can provide a compact closure for reagent preparation, sample storage, and transport. The sealing result depends on the foil structure, tube material, rim design, and equipment settings, so we recommend testing the complete tube and foil combination before production. Whether you need discs for manual placement or an automated sealing line, send us your tube dimensions and application details. We can review the required size and prepare samples for your sealing trials.

Need a custom size? Send us your tube drawing, tube material, and expected order quantity to request a quotation and samples.

Cause: Why Reagent Tubes Need a Reliable Seal

Laboratory reagent tubes may be filled, handled, stored, and transported before their contents are used. An unsuitable seal can create practical problems: the foil may shift during placement, fail to bond evenly around the rim, or be difficult to open in the intended workflow.

Tube openings also vary in diameter, rim width, and shape. A standard foil disc may leave too little sealing area or excess material around the edge. For purchasing teams, selecting by diameter alone may therefore be insufficient. The tube material and sealing process must also be considered.

Solution: Custom Foil Discs for Your Tube and Process

Our aluminum foil heat seal discs can be customized to fit your reagent tube opening. We review the supplied dimensions and intended sealing method to determine a suitable disc size and format for sampling.

Customization can cover the outer diameter, shape, and supply format, subject to project requirements. If your process calls for easy opening or access with a pipette tip, tell us at the inquiry stage so the foil structure can be evaluated for that use. Peelability and pierceability should be confirmed with actual samples; they should not be assumed from the foil appearance alone.

For the most useful quotation, please provide a tube drawing or clear photos with measurements, the tube material, the sealing equipment model, and any requirements for storage or opening. This allows us to discuss a practical sample specification before bulk production.

Specifications

Final dimensions, structure, performance, and operating conditions should be confirmed in the approved sample specification.

Application

These custom foil discs are suitable for projects involving laboratory reagent tubes, sample preparation containers, diagnostic consumables, and other small laboratory tubes that require a heat sealed opening. They may be considered for filling lines, kit assembly, sample storage workflows, and applications where a low-profile foil closure is preferred.

The suitability of a seal for a particular reagent, storage temperature, transport condition, or downstream test must be assessed for that application. If your project has chemical resistance, low-temperature storage, sterilization, or other special requirements, include them in your inquiry so they can be addressed during material selection and validation.

How It Works

The foil disc is placed over the tube opening. A heat sealing device applies controlled heat and pressure for a defined time, bonding the seal layer to the tube rim. After cooling, the foil forms a closure across the opening.

A consistent result requires more than a suitable disc diameter. The tube rim should provide adequate contact area, the foil should be positioned correctly, and the sealing settings must match the selected materials. Seal strength, opening behavior, and leakage performance should be checked using filled or representative tubes under the intended conditions. Laboratory heat seal products on the market also specify compatibility by container material and sealing system, which is why trial sealing is an essential selection step. documents.thermofisher.com

How To Choose

1. Measure the tube opening. Provide the opening diameter, outer rim diameter, and rim width, preferably on a drawing.
2. Identify the tube material. Share the material designation supplied by the tube manufacturer.
3. Describe the sealing process. Tell us the equipment model, placement method, and any available sealing settings.
4. Define how the tube will be opened. Specify whether users should peel off the foil, pierce it, or use another method.
5. Test samples in the real workflow. Check seal quality after filling, handling, storage, and transport conditions relevant to your product.

Send your tube drawing or sample to XINXIA. We will review the custom size and discuss sampling, pricing, and production quantities.

FAQ

1. Can the foil disc diameter be customized?

Yes. Please provide the tube opening and rim dimensions, or send a drawing or physical sample. We will review the disc size required for your sealing process.

2. Will the foil seal work with every reagent tube?

Compatibility depends on the tube material, rim design, foil structure, and heat sealing settings. We recommend a sealing trial with the actual tube before confirming the specification.

3. Can you supply peelable or pierceable seals?

Tell us which opening method your application requires. The appropriate structure and its opening performance need to be evaluated with samples.

4. What information do you need for a quotation?

Please send the tube dimensions, tube material, required quantity, preferred supply format, sealing equipment details, and any special storage or opening requirements.

5. Can I test samples before placing a bulk order?

Yes. Share your technical requirements so we can discuss a suitable sample for your tube and arrange a sealing trial before production.