Thermo Scientific™ WebSeal™ 96-Well Round Well Plate Sealing Mats, 7 mm Diameter, Domed Base

Catalog No.	Pre-slit	No. of Wells
03-252-172	Yes	96
03-252-169	No	96

Catalog No. 03-252-172 Supplier Thermo Scientific™ Supplier No. 60180M115

Description

Eliminate cross contamination, and get an inert and safe seal of your plates, every time. Mat materials resist coring and tearing, while also offering superior resealability.

Eliminate cross contamination of samples with Thermo Scientific™ WebSeal™ Mats for an inert, safe seal of your plates, every time. Available in EVA (ethylene-vinyl acetate) or pure silicone, with or without PTFE coating, these mats resist coring and tearing, and provide superior resealability after multiple injections.

Excellent Chemical and Thermal Compatibility

• Solvent-resistant with excellent chemical compatibility
• Silicone mats are dry heat autoclavable, and can withstand low temperatures to -80°C

Automation-Ready

• Footprint allows plates to be securely stacked without robotic arm interference
• Available pre-slit for better piercability and reduced vacuum formation

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Specifications

• Color: Blue
• Solvent Or Alcohol Resistant: No Resistance
• Description: Domed base
• Material: Silicone, PTFE
• Sterility: Non-sterile
• No. of Wells: 96
• No. per Pack: 5 Mats
• Plug Diameter: 7 mm
• Pre-slit: Yes
• Product Type: Well Plate Sealing Mat
• Product Line: Webseal
• Temperature Range (Metric): -80°C
• Well Shape: Round
• Plate Compatibility: 96-well Plate

Frequently Asked Questions (FAQs)

Have the WebSeal mats been tested for evaporation?

Yes, all WebSeal mats that may be used with the WebSeal well plates have been subjected to evaporation tests which are either gravimetric or chromatographic. Gravimetric testing results show the retention of volatile solvents over periods of hours to days. The chromatographic evaluation shows the repeatability of low concentration standards over typical chromatographic analytical cycles.

What is the difference between the SureSTART Performance Level 1, Performance Level 2, and Performance Level 3 vials?

All glass vials found within the three different performance levels are made from Type 1 Class A Borosilicate glass. This type of glass has excellent chemical resistance properties that make it ideal for the containment or storage of acidic, neutral and alkaline samples/analytes. The vials also have high temperature resistance and are suitable for use at temperatures between -50 degrees C to 120 degrees C (although a rapid change in temperature of the products should be avoided).

The Performance Level 1 vials are designed to identify those which are suitable for simple routine, testing with limited budget. Performance Level 1 glass vials have a single wavy line.

For most analytical requirements, the Performance Level 2 products will be suitable for use with higher sensitivity methods while maintaining throughput. Performance Level 2 glass vials have two wavy lines.

For the most stringent analytical requirements, the Performance Level 3 products have advanced features which make them suitable for use with difficult samples in terms of chemistry and available sample volume. All Performance Level 3 products are made from 33-expansion glass and these vials have three wavy lines.

What happened to National, Chromacol, and other brands for chromatogenic workflow accessories?

Many of the products that were branded as National Scientific and Chromacol have been absorbed into the new Thermo Scientific SureSTART Collection, although there are still a few products that still exist within the marketplace.

For more information, please contact your local sales representative or complete the inquiries form at the bottom of the SureSTART Autosampler Vials and Caps page (https://www.thermofisher.com/us/en/home/industrial/chromatography/chromatography-consumables/autosampler-vials-caps-hplc-gc.html).

What is the SureSTART products portfolio for chromatographic workflows?

The SureSTART portfolio is a comprehensive list of vials, caps, inserts, well plates, mats and accessories that are suitable for use with chromatographic workflows. The SureSTART portfolio contains three different performance levels that have been quality checked to provide a robust and reliable product.

The SureSTART portfolio includes products that were previously found in our legacy brands such as National Scientific, Chromacol, and Sun-Sri.

Limited warranty period: Subject to all warranty requirements and exclusions set out in our Terms and Conditions of Sale, this product is warranted from the date we ship the product and for ninety (90) days thereafter. Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.