Excel Scientific

PCR & qPCR Film

ThinSeal™, Sterile. 100 Sealing Films/Pack

ThinSeal™ Sterile (STR-THIN-PLT) by MBP is the sterile format of ThinSeal plate sealing film. 100 sealing films per pack. Single SKU. Ships ambient. Contact MBP for additional specifications.

Manufacturer

<h2 dir="ltr">What are ELISA, incubation, and storage films?</h2>
 ELISA, incubation, and storage sealing films are adhesive polyester (PET) or polypropylene (PP) sheets applied over 96- and 384-well plates to seal each well during enzyme immunoassays, incubation, and short-term sample storage. By securing every well rather than loosely covering the plate, they eliminate evaporation-driven "edge effects" that skew optical density readings at the plate's perimeter. Most are non-pierceable, certified DNase- and RNase-free, and available sterile or non-sterile. Buy from this category for plate-based immunoassays and benchtop incubation where a secure, residue-clean seal matters more than gas exchange or a freezer rating.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
ELISA plate sealing films for immunoassay workflows
</li>
<li dir="ltr" aria-level="1">
Incubation films for controlled laboratory reactions
</li>
<li dir="ltr" aria-level="1">
Short-term storage films for microplate protection
</li>
<li dir="ltr" aria-level="1">
Adhesive sealing films for secure plate closure
</li>
<li dir="ltr" aria-level="1">
Optical clear films for absorbance and fluorescence detection
</li>
<li dir="ltr" aria-level="1">
Non-pierceable barrier films for contamination control
</li>
<li dir="ltr" aria-level="1">
Heat-stable films for incubation conditions
</li>
<li dir="ltr" aria-level="1">
Low-evaporation films for improved assay consistency
</li>
</ul>
<h2 dir="ltr"> How to choose ELISA and incubation films</h2>
 Match the film to your plate resin
Polyester films seal both polystyrene and polypropylene plates; polypropylene films offer superior barrier properties and pair best with PP plates for lower evaporation during longer incubations. 
Confirm sterile vs non-sterile
Choose sterile films for cell-containing or biohazard-containment work and non-sterile films for routine ELISA; both are commonly certified DNase-/RNase-free for molecular compatibility.
Pick the format for how you access wells
Full sheets seal whole plates; 1&times;8 and 2&times;8 mini-strips seal one or two rows when you need to protect or access wells selectively; pre-scored rolls are economical for high-throughput sealing.
Check the temperature range
Standard polyester films hold a seal from roughly &minus;40 &deg;C to +120 &deg;C, covering incubation and short-term storage, but not &minus;80 &deg;C archival freezing; for that, use a cold storage film
&nbsp;
<h2 dir="ltr">Specifications context</h2>
 A typical sheet measures about 79.4 &times; 146.1 mm with a 50 &micro;m polyester base and a 25 &micro;m acrylic adhesive; thinner 25 &micro;m films are clearer and marginally pierceable for sample recovery. Non-pierceable films give the most secure barrier for incubation. For sensitive immunoassays, DNase-/RNase-free certification prevents background interference. Some sheets include perforated end tabs that can be removed or wrapped over the plate edge for extra hold during longer incubations.&nbsp; 
&nbsp;
For specifications, compatibility details, or bulk supply options, <a href="https://mbpinc.net/contact-us">connect with the MBP team </a>and get the right sealing solution matched to your ELISA and incubation workflow.

Elisa/Incubation/Storage Film

ValuSeal™, General laboratory use, short-term storage, incubation and ELISA, -40°C to +120°C, 100 Sealing Films/Pack

ValuSeal™ (SP-VS-100) by MBP features smaller dimensions and a single non-perforated end-tab for cost-effective microplate sealing. Protects samples from evaporation, external contamination, dust, and particulates. Listed for general laboratory use, short-term storage, incubation, and ELISA. &minus;40&deg;C to +120&deg;C. 100 films/pack. Ships ambient.

Application

Temperature Range

<h2 dir="ltr">What are cold storage sealing films?</h2>
 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 &minus;80 &deg;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.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="color: #000000;" aria-level="1">
Cold storage sealing films for freezer and refrigeration use
</li>
<li dir="ltr" style="color: #000000;" aria-level="1">
Aluminum foil barrier films for long-term sample protection
</li>
<li dir="ltr" style="color: #000000;" aria-level="1">
High-performance adhesive films for evaporation control
</li>
<li dir="ltr" style="color: #000000;" aria-level="1">
Low-temperature resistant films for -20&deg;C to -80&deg;C storage
</li>
<li dir="ltr" style="color: #000000;" aria-level="1">
Pierceable films for post-storage sample access
</li>
<li dir="ltr" style="color: #000000;" aria-level="1">
Chemical-resistant sealing films for reagent stability
</li>
<li dir="ltr" style="color: #000000;" aria-level="1">
Microplate sealing films for cold chain workflows
</li>
</ul>
<h2 dir="ltr"> How to choose cold storage films</h2>
 Confirm the low-temperature rating Choose a film with a stated seal-integrity range that reaches &minus;80 &deg;C; some foils hold from &minus;80 &deg;C to +110 &deg;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 &mdash; 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.
<h2 dir="ltr"> Specifications context</h2>
 Cold storage foils are defined by temperature range, adhesive type, chemical resistance, and whether they are pierceable. A foil rated &minus;80 &deg;C to +110 &deg;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.
&nbsp;
Protect your samples with confidence. Request product options, specifications, or bulk supply details. <a href="https://mbpinc.net/contact-us" style="color: #000000;">Contact the MBP team</a> and get the right sealing solution tailored to your cold storage workflow.

Cold Storage Film

Flyer

X-Peirce 96-Well Plate Specs Sheet

X-Pierce 384-Well Plate Specs Sheet

X-Pierce™

X-Pierce™ (XP-100) by MBP is a resealable plate sealing film with X-scored well access — allows pipet tip piercing and resealing without coring or adhesive fouling. Rated &minus;40&deg;C to +90&deg;C for short-term storage and robotics. Non-sterile 96-well (XP-100, 100 films), sterile 96-well (XPS-25, 50 films), and 384-well (XP-384-50, 50 films) variants. Ships ambient.

X-Pierce™, Short-term processing and storage at ambient temperatures; robotics, -40°C to +90°C, 100 Sealing Films/Pack

X-Pierce™, Sterile, Short-term processing and storage at ambient temperatures; robotics, -40°C to +90°C, 50/Pack, 100 Sealing Films/Pack

X-Pierce™, 384 Well

Zone-Free Pierceable sealing Film

Zone-Free™ (ZAF-PE-50) by MBP is a multilayer pierceable plate sealing film with adhesive-free zones over each well to minimize sample-adhesive contact during piercing. For automated liquid handling and compound dispensing. 96-well (ZAF-PE-50) and 384-well (ZAF-384-50) formats, 50 films/pack each. Rated &minus;40&deg;C to +90&deg;C. Ships ambient.

Zone-Free™, 96 Well, Short-term storage and robotics, -40°C to +90°C, 50 Sealing Films/Pack

Zone-Free™, 384 Well, Short-term storage and robotics, -40°C to +90°C, 50 Sealing Films/Pack

eXTReme™ 2 Seal

eXTReme™ 2 Seal (XTR2-100) by MBP is an aluminum foil plate sealing film with excellent chemical resistance and superior performance at ultra-low temperatures. Distinct from eXTReme Seal (XTR-100, clear adhesive). Available in standard (XTR2-100) and large (XTR2-LG-100) formats, 100 films/pack each. Ships ambient.

eXTReme™ 2 Seal, PCR and robotics, -20°C to +120°C, 100 Sealing Films/Pack

eXTReme™ 2 Seal, Large, PCR and robotics, -20°C to +120°C, 100 Sealing Films/Pack

<h2 dir="ltr">What are light-sensitive sealing films?</h2>
 Light-sensitive sealing films are light-blocking microplate seals &mdash; typically aluminum foil or opaque pigmented polymer &mdash; used to protect photosensitive contents from light exposure during incubation, detection, and storage. They prevent the photobleaching of fluorophores and the photodegradation of light-labile reagents and drugs, while still stopping evaporation and well-to-well contamination. Foil versions also block gases and tolerate &minus;80 &deg;C storage, and several are pierceable for robotic access. Buy from this category whenever a sample's signal or stability depends on keeping light out of the wells.
&nbsp;
<h2 dir="ltr">What you will find: </h2>
<ul>
<li dir="ltr" aria-level="1">
Black opaque sealing films for full light protection
</li>
<li dir="ltr" aria-level="1">
Semi-opaque light-reducing films for controlled exposure workflows
</li>
<li dir="ltr" aria-level="1">
Standard formats for 96-well microplates (approx. 127 &times; 80 mm)
</li>
<li dir="ltr" aria-level="1">
384-well compatible sealing films for high-throughput assays
</li>
<li dir="ltr" aria-level="1">
Adhesive sealing films for secure microplate closure
</li>
<li dir="ltr" aria-level="1">
Optical-compatible films for fluorescence-based assays
</li>
<li dir="ltr" aria-level="1">
Pierceable and non-pierceable film options for workflow flexibility
</li>
<li dir="ltr" aria-level="1">
High-barrier films for evaporation and contamination control
</li>
</ul>
<h2 dir="ltr"> How to choose light-sensitive films</h2>
&nbsp;
Confirm full light-blocking Choose fully opaque foil or pigmented film, not tinted clear film, when contents are strongly photosensitive; foil blocks light completely, while pigmented polymer films balance light protection with easier handling.
Decide whether you still need optical access Light-sensitive films are not for reading through; if a protocol requires both light protection and optical detection, seal for storage with an opaque film and switch to an optical film at the read step.
Check temperature and storage rating Foil light-blocking films often double as cold storage seals rated to &minus;80 &deg;C, suiting light-sensitive compound libraries; confirm the stated range before archiving frozen samples.
<h2 dir="ltr"> Compare light-sensitive film variants.</h2>
&nbsp;
<ul>
<li data-section-id="17gvbe2" data-start="0" data-end="165">Opaque aluminum foil: Provides maximum light blocking and supports &minus;80 &deg;C storage; compatible with storage and polypropylene plates, as well as robotic probes.</li>
<li data-section-id="1jnkzrj" data-start="167" data-end="335">Pierceable foil: For photosensitive high-throughput screening (HTS) and automated sample access; compatible with polypropylene plates and liquid handling systems.</li>
<li data-section-id="1o0gauf" data-start="337" data-end="479" data-is-last-node="">Black/amber polymer film: For light-sensitive applications requiring easier benchtop handling; compatible with assay and culture plates.</li>
</ul>
<h2 dir="ltr"> Specifications context</h2>
 Light-sensitive films are characterized by opacity, temperature range, and whether they are pierceable. Aluminum foil offers complete light blocking plus a gas and moisture barrier, and often carries a &minus;80 &deg;C to +110 &deg;C rating for combined light protection and freezer storage. Pigmented polymer films are easier to handle for benchtop work. Because a conformable foil presses down into each well, it leaves a defined impression around every well that lets the user confirm a complete seal by eye, and the opaque, intact layer doubles as a tamper-evident and contamination barrier while plates move between the bench, incubator, and freezer. Because these films are not optically clear, they are removed before any fluorescence or absorbance read. As of 2026, they ship in packs of 100 or rolls in a low-to-mid price tier.&nbsp; 
&nbsp;
Instead of struggling with inconsistent results, choose a sealing solution designed specifically for light-sensitive work. <a href="https://mbpinc.net/contact-us">Connect with the MBP team</a> to find the right film format, compatibility, and bulk supply option for your application.

Light Sensitive Film

eXTReme™ FoilSeal™

eXTReme™ FoilSeal™ (XTR-FOIL-100) by MBP is an aluminum foil plate seal with excellent chemical resistance and superior performance in ultra-low temperatures. Listed for long-term storage, light sensitive assays, and robotics. &minus;80&deg;C to +120&deg;C, 100 films/pack. Standard (XTR-FOIL-100) and large (XTR-FOILLG-100) formats. Ships ambient.

eXTReme™ FoilSeal™, Long-term storage, light sensitive assays and robotics,-80°C to +120°C, 100 Sealing Films/Pack

eXTReme™ FoilSeal™, Large, Long-term storage, light sensitive assays and robotics,-80°C to +120°C, 100 Sealing Films/Pack

<h2 dir="ltr">What are PCR and qPCR sealing films?</h2>
 PCR and qPCR sealing films are optically clear microplate seals applied to 96- and 384-well PCR plates to create an airtight barrier through every thermal cycle, preventing evaporation, condensation, and cross-well contamination while still letting fluorescence pass through to the qPCR detector. Most are pressure-sensitive adhesive (PSA) or heat-activated films built on polypropylene or polyester (PET) with low-autofluorescence chemistry. Standard formats fit SBS sheets of approximately 137 &times; 80 mm. Buy from this category whenever the seal sits on a plate that will be thermally cycled or read in real time, not stored or incubated under simple lids. 
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Optical-grade qPCR sealing films for fluorescence-based detection</li>
<li dir="ltr" role="presentation">Standard adhesive PCR films for routine thermal cycling</li>
<li dir="ltr" role="presentation">96-well microplate sealing films for standard PCR workflows</li>
<li dir="ltr" role="presentation">384-well compatible sealing films for high-throughput assays</li>
<li dir="ltr" role="presentation">High-temperature resistant films for -40&deg;C to 120&deg;C cycling</li>
<li dir="ltr" role="presentation">Low-evaporation sealing films for reaction stability</li>
<li dir="ltr" role="presentation">DNase/RNase-free films for contamination-sensitive assays</li>
</ul>
&nbsp;
<h2 dir="ltr">How to choose PCR or qPCR sealing film</h2>
 Confirm true optical clarity if you read fluorescence Not every "clear" sealing film has enough optical clarity and low enough autofluorescence for real-time PCR; choose a film specifically rated for qPCR with high light transmittance and no autofluorescence so excitation and emission pass cleanly. Standard storage films can suppress the signal. Decide between adhesive (PSA) and heat-seal Pressure-sensitive adhesive films are applied with a roller or paddle at the bench and peel off; heat-seal films bond under a plate sealer at controlled temperature and pressure for the strongest barrier in high-throughput and automated qPCR. PSA suits flexible workflows; heat-seal suits volume. Match the plate, thermal cycler, and skirt Confirm the film fits 96- or 384-well plates from your supplier and seats properly under the heated lid of your thermal cycler &mdash; full-skirt, semi-skirt, and non-skirt plates have different sealing surfaces. Sheet size near 137 &times; 80 mm is the SBS norm. Check chemical and temperature resistance PCR plate sealers and thermal cyclers reach 105 &deg;C routinely, and some films are rated to 150 &deg;C; check that the film and adhesive withstand the cycler protocol and the master mix without softening, lifting at corners, or leaving residue after peeling.
&nbsp;
<h2 dir="ltr">Specifications context</h2>
 Quality qPCR films are defined by light transmittance (typically &ge; 90 %), absence of autofluorescence, evaporation rate (commonly &le; 3 %), thermal tolerance to about 105 &deg;C with high-temperature variants to 150 &deg;C, and a DNase/RNase- and human-DNA-free certification appropriate for amplification. Most are supplied as flat SBS-format sheets around 137 &times; 80 mm, packed 100 per box; some have perforated end tabs for one-handed peeling. As of 2026, they sit in a low-to-mid price tier, with heat-seal films at the higher end.&nbsp; 
&nbsp;
<a href="https://mbpinc.net/contact-us">Connect with the MBP team today</a>&nbsp;to find the perfect optical or standard seal for your amplification workflow. Browse the wider&nbsp;<a href="https://mbpinc.net/consumables/sealing-films">sealing films range </a>for post-PCR archiving and reorder today via <a href="https://mbpinc.net/quickorder">Quick Order</a>.

DataSheet

eXTReme™ Seal

eXTReme™ Seal (XTR-100) by MBP is a clear, strong-adhesive PCR plate sealing film with chamfered corners to prevent overhang in robotic systems and plate stacks. Rated &minus;20&deg;C to +120&deg;C. Standard 96-well (XTR-100, 100 films) and large deep-well format (XTR-LG-100, replaces Thermofisher 4306311) available. Ships ambient.

eXTReme™ Seal, PCR and robotics, -20°C to +120°C, 100 Sealing Films/Pack

eXTReme™ Seal, LargeFor sealing PCR plates and deep well plates - Replaces 4306311 by Thermofisher 100 Seals/Case

eXTReme™ SealMate™ Roll

eXTReme™ SealMate™ Roll (RSMXTR2) by MBP is an extra-strong adhesive plate sealing film that minimizes evaporation yet removes cleanly without residue. Ideal for PCR, qPCR, ELISA, and storage applications. Available as roll only (RSMXTR2) or with SealMate applicator kit (SM-KIT-XTR).