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Microsoft STR-SEAL-PLT Sterile SealPlate Sealing Film

★★★★★5.0 (2 reviews)

Sterile polyester sealing film for microplates that minimizes evaporation and prevents contamination during ELISA, incubation, and storage.

$68.69*
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*Price sourced from Amazon.com. Last updated:Jun 26, 2026.Price and availability are subject to change.

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Overview

The SealPlate Polyester Sealing Film (STR-SEAL-PLT) is a lab consumable designed to provide a secure, sterile seal over standard microplates and tissue-culture plates. Each 50 µm thick polyester film measures 79.4 x 146.1 mm and adheres smoothly across all wells, creating a barrier that minimizes evaporation and reduces the risk of cross-contamination. This makes it well suited for ELISA assays, short-term incubation, sample storage, and biohazard containment where maintaining sample integrity is essential.

A key advantage of this sealing film is its ability to eliminate edge effects — the inconsistent evaporation patterns that often plague the outer wells of unsealed or poorly sealed plates. By providing uniform coverage, the film helps ensure more reliable and reproducible results across the entire plate. Supplied in packs of 100 sterile sheets, it is a practical choice for labs running moderate- to high-throughput workflows that require dependable, ready-to-use plate seals without the need for specialized sealing equipment.

Key Features

Country of Origin : United States

Designed for sealing microplates; can be used to seal tissue culture plates for short term storage, incubation, and containment of biohazards

Eliminates “edge effects”

Part Number: STR-SEAL-PLT

Specifications

Brand
Excel Scientific
Model
STR-SEAL-PLT
Material
Polyester
Sterility
Sterile
Dimensions
79.4 x 146.1 mm
Thickness
50 µm
Quantity
100 per pack
Applications
ELISA, Incubation, Storage
Country of Origin
United States

Pros & Cons

👍 Pros

  • Sterile packaging ensures contamination-free handling for sensitive biological work
  • Eliminates edge effects for more consistent well-to-well results across the plate
  • Thin 50 µm polyester construction allows easy application and removal without disturbing samples
  • Compatible with both microplates and tissue-culture plates for versatile lab use
  • 100-count pack provides good value for high-throughput workflows

👎 Cons

  • Designed for short-term sealing only, not suitable for extended long-term storage
  • Polyester film may not withstand extreme temperature applications such as PCR thermal cycling
  • Does not provide a hermetic seal comparable to heat-sealed foil or adhesive aluminum options

Frequently Asked Questions

Each pack contains 100 sterile polyester sealing films.
The film measures 79.4 x 146.1 mm, designed to fit standard microplates and tissue-culture plates.
Yes, each film is individually sterile, making it suitable for containment of biohazards and tissue culture applications.
Edge effects occur when wells along the perimeter of a microplate experience different evaporation rates than interior wells. This sealing film provides a uniform seal across all wells, reducing temperature and humidity variation that causes inconsistent results.
It is designed for short-term storage, incubation, and containment. For long-term storage, a more robust sealing method such as heat-sealed foil may be more appropriate.

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