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Microsoft

Excel Scientific 100-THER-PLT ThermalSeal PCR Sealing Film

89W

Heat-resistant polypropylene sealing film for reliable PCR plate sealing during thermal cycling applications.

$67.59*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

The Excel Scientific ThermalSeal (100-THER-PLT) is a polypropylene-based sealing film specifically engineered for PCR thermal cycling applications. Constructed from 50 µm heat-resistant polypropylene with a 25 µm acrylic adhesive backing, it provides a consistent, secure seal over PCR plate wells, protecting samples from evaporation and cross-contamination during repeated heating and cooling cycles. Unlike aluminum foil seals, the ThermalSeal film lies flat and does not roll back during application, allowing for quicker, more reliable sealing with fewer wasted sheets.

Each sheet measures 79.4 x 135.1 mm and features perforated end tabs that can be removed to fit standard plate dimensions (123.1 mm between perforations). The film is non-pierceable, meaning it is designed to remain intact throughout the thermal cycling process — labs that require piercing access should select a different product. Supplied in packs of 100, the ThermalSeal film is a practical consumable for laboratories running regular PCR workflows where consistent sealing performance and ease of use are priorities.

Key Features

Heat resistant

Easier to apply than aluminum foils, no tendency to roll back

Package Weight : 0.55 pounds

Package Dimensions: 16.51 L x 2.794H x8.89W(centimeters)

Specifications

Brand
Excel Scientific
Model
100-THER-PLT
Material
50 µm Heat-Resistant Polypropylene + 25 µm Acrylic Adhesive
Dimensions
79.4 x 135.1 mm (123.1 mm between perforations)
Application
Thermal Cycling (PCR)
Pierceable
No
Quantity
100 per pack
Package Weight
0.55 lbs
Package Dimensions
16.51 x 8.89 x 2.794 cm

Pros & Cons

👍 Pros

  • Heat-resistant polypropylene withstands thermal cycling temperatures without warping or peeling.
  • Lays flat without rolling back, making it faster and more consistent to apply than aluminum foil seals.
  • Acrylic adhesive provides a secure seal that protects samples from evaporation and cross-contamination.
  • Pack of 100 sheets offers good value for labs running frequent PCR workflows.

👎 Cons

  • Non-pierceable design means samples cannot be accessed without fully removing the seal.
  • Not suitable for PCR plates with narrow or irregular sealing surfaces, limiting plate compatibility.
  • Adhesive-based sealing may leave residue on plate rims if removed and reapplied.
  • Only designed for thermal cycling applications and may not be appropriate for long-term cold storage.

Frequently Asked Questions

It is made from 50 µm heat-resistant polypropylene with a 25 µm acrylic adhesive layer, engineered to withstand the temperature extremes of thermal cycling.
No, the ThermalSeal film is non-pierceable by design. It is intended to remain intact during thermal cycling to maintain a secure seal. If piercing is required, a different sealing film should be used.
Yes, the polypropylene film lies flat and does not roll back during application, making it significantly easier to apply consistently compared to aluminum foil alternatives.
It works with standard PCR plates that have flat, uniform sealing surfaces. It is not recommended for plates with narrow or irregular sealing rims.
Each pack contains 100 sheets of sealing film.

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