Cold Storage Sealing Films for -80°C Plates

Cold storage sealing films are aluminum-foil and foil-laminate covers built to keep microplate wells sealed through long-term freezing, typically down to −80 °C, for sample archiving and compound libraries. The conformable foil lets you confirm the seal around each well visually, resists DMSO and solvents, and can be pierced by pipette tips or robotic probes for automated retrieval.

Lab and biobank teams managing frozen sample sets get application-matched films and direct specialist support from MBP, which ships worldwide from Houston, Texas. Request a quote by contacting customerservice@mbpinc.net

Cold Storage Film

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What are cold storage sealing films?

Cold storage sealing films are aluminum-foil or foil-laminate seals applied to microplates and deep-well storage plates to maintain an airtight barrier through long-term freezing, commonly rated to −80 °C and sometimes lower. Foil blocks light and gases, resists DMSO and organic solvents, and conforms to each well so the seal is visible and verifiable. Many are pierceable by pipette tips, needles, or robotic probes, and some heat-seal foils are autoclavable. Buy from this category for biobanking, compound-library archiving, and any sample set that must survive months at ultra-low temperature.

What you will find:

Cold storage sealing films for freezer and refrigeration use
Aluminum foil barrier films for long-term sample protection
High-performance adhesive films for evaporation control
Low-temperature resistant films for -20°C to -80°C storage
Pierceable films for post-storage sample access
Chemical-resistant sealing films for reagent stability
Microplate sealing films for cold chain workflows

How to choose cold storage films

Confirm the low-temperature rating
Choose a film with a stated seal-integrity range that reaches −80 °C; some foils hold from −80 °C to +110 °C, covering both freezer archiving and limited thermal steps.

Decide pierceable vs permanent
Pierceable foils let robotic probes or pipette tips access wells without removing the seal — essential for automated biobanks; permanent heat-seal foils give a tamper-evident, near-irreversible barrier for long-term archiving.

Check chemical resistance
For DMSO compound libraries and solvent-containing samples, confirm the foil is rated DMSO- and solvent-resistant so the seal and adhesive survive storage.

Match the application method
Pressure-sensitive foils apply with a hand roller; heat-seal foils need a benchtop plate sealer and a compatible hot-melt adhesive, and will not bond with standard pressure-sensitive adhesives.

Specifications context

Cold storage foils are defined by temperature range, adhesive type, chemical resistance, and whether they are pierceable. A foil rated −80 °C to +110 °C covers freezer archiving and limited thermal cycling, while DMSO resistance matters for screening libraries. Heat-seal foils require a matched sealer and hot-melt adhesive, whereas pressure-sensitive foils are applied by roller. Because foil is opaque, plates are identified by a label on the foil or by position in the rack rather than read through the seal, so a clear labelling convention matters for retrieval.

Protect your samples with confidence. Request product options, specifications, or bulk supply details. Contact the MBP team and get the right sealing solution tailored to your cold storage workflow.

FAQ

A cold storage sealing film is an aluminum-foil or foil-laminate cover that keeps microplate wells sealed through long-term freezing, typically to −80 °C, for sample archiving and compound libraries. The conformable foil blocks light and gases, resists DMSO, and lets you confirm the seal around each well. Many are pierceable by robotic probes for automated retrieval.

Cold storage foils are commonly rated to −80 °C, with several holding seal integrity from −80 °C to +110 °C so they survive both freezer archiving and limited thermal steps. Always check the specific film's stated range against your storage protocol, since not every adhesive performs identically at ultra-low temperatures over months of storage.

Many cold storage foils are pierceable by pipette tips, needles, and robotic probes, allowing automated liquid handlers to access wells without removing the seal — a key requirement for high-throughput biobanks. Permanent heat-seal foils, by contrast, are difficult to pierce and intended as a tamper-evident archival barrier. Choose based on whether samples will be retrieved robotically.

Several cold storage foils are rated resistant to DMSO and organic solvents, which is essential for compound libraries stored in DMSO. Confirm the chemical-resistance rating on the product page before archiving solvent-containing samples, as resistance varies by foil and adhesive. A solvent-rated foil prevents seal failure and evaporation over months of storage.

Heat-seal foils require a benchtop plate sealer and a compatible hot-melt adhesive to bond properly; standard pressure-sensitive adhesives will not seal reliably in a heat sealer, and heat-seal foils will not stick by hand. Pressure-sensitive foils, in contrast, apply with a roller. Match the foil type to the sealing equipment your lab already runs.

Conformable foil presses into the space around each well, so a properly applied seal shows as a defined impression around every well — useful for spotting gaps before freezing. Rolling the foil firmly with a hand roller or paddle ensures the seal forms uniformly. Inspect for creases or lifted corners before placing plates in the freezer.

Cold storage foils are used with polypropylene microplates and deep-well storage plates, which tolerate −80 °C better than polystyrene. Confirm the foil's footprint matches your 96- or 384-well plate before ordering. For breathable culture work or optical detection, a different film type from the sealing films range is the right choice.

Cold storage films are ordered through MBP's Quick Order tool or by purchase order, with biobank-scale and case pricing in USD and CAD available on request. MBP ships worldwide from its Houston, Texas office, and a specialist responds directly to confirm temperature rating and pierceability for your workflow rather than routing you through a multi-day queue.

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