Thermo Scientific Microplate Lid with Condensation Ring Total of 135 Plate Lids

Thermo Scientific Nunc Microplate Lid – Clear Polystyrene, 96-Well Format, Individual Condensation Rings, Evaporation Barrier, Long Side Cut-Off Corner, Non-Sterile (MPN: 263339)

The Thermo Scientific Nunc 263339 (also cataloged as 263339) is a premium, laboratory-grade microplate lid precision-engineered to safeguard samples from external contamination and minimize evaporation during high-throughput screening, assay processing, and storage. Molded from optically clear virgin polystyrene, this standard-height lid (7.9 mm profile) is designed explicitly for 96-well microplates. The underside is engineered with 96 individual condensation rings that isolate each well cavity, paired with a raised internal perimeter evaporation barrier to mitigate edge effects during incubation. Featuring directional alignment notches and long side cut-off corners, this autoclave-incompatible, non-sterile lid facilitates error-free orientation in automated and manual workflows alike.

Technical Performance and Design

• Individual Condensation Rings: Formed with 96 distinct, raised circular rings on the lower face. This architecture aligns perfectly over standard 96-well layouts, trapping evaporating water vapor locally to halt lateral fluid tracking and eliminate cross-well sample contamination.

• Perimeter Evaporation Barrier: Outfitted with a specialized interior rim running along the outer boundary walls. This barrier alters micro-airflow patterns across the plate face, significantly reducing peripheral fluid loss and preventing misleading mathematical edge-effect anomalies during incubation.

• Notched Long Side Orientation: Features built-in structural alignment notches and a long side cut-off corner geometry. This physical asymmetric layout forces fast, mistake-free manual orientation and ensures exact placement profiles under precise microplate hood lines.

• Pristine Polystyrene Optical Clarity: Fabricated from high-transparency virgin polystyrene resin, allowing for unobstructed visual monitoring and automated barcode tracking audits without removing the cover shell.

Product Specifications

• Catalog Number / MPN: 263339 (Cross-listed as 263339 / 62409-126)

• Manufacturer / Product Line: Thermo Scientific / Nunc MicroWell

• Format Layout Compatibility: Standard 96-Well Microplates (Fits all common well bottom profiles)

• Physical Dimensions: 127 mm length x 85 mm width x 7.9 mm standard height

• Material Composition: Optically Clear Virgin Polystyrene (PS)

• Structural Corner Type: Long Side Cut-Off Corner Array

• Thermal Operational Boundary: Stable for continuous tracking from minus 20 C up to plus 80 C (Not Autoclavable)

• Sterility Status: Non-Sterile (Optimized for chemical testing, storage, and general assay processing)

• Standard Case Configuration: Case of 100 Lids total (Divided into convenient inner packs of 5)

Key Benefits and Applications

• Assay Incubation Preservation: The baseline accessory choice for shielding multiwell colorimetric or fluorometric plates during prolonged incubation cycles, maintaining stable concentration curves inside climate chambers.

• Mitigated Edge Effects: Passive evaporation block design ensures that outer perimeter wells retain volume levels consistent with inner columns, guaranteeing clean, standardized biological data curves.

• High-Throughput Automation Alignment: Rigid structural dimensions match global ANSI/SLAS parameters, permitting flawless tool interface handoffs with automated fluid handling decks and plate gripper lines.

• Clean Storage Archiving: Acts as an excellent reusable physical barrier against airborne particulates or environmental dust deposits for short- and mid-term microplate compound archiving.

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