PR1MA™ Extra Stretch Sealing Film

Flexible, airtight laboratory seal.

PR1MA™ Extra Stretch Sealing Film is a colorless paraffin/polyolefin film that molds to almost any surface, creating a secure seal for a wide range of laboratory containers. It adheres to test tubes, centrifuge tubes, petri dishes, flasks, bottles, and beakers, making it an essential tool for protecting sensitive samples.

This latex-free sealing film provides a strong yet flexible moisture barrier while allowing controlled exchange of H2O vapor, O2, and CO2, ensuring sample integrity without compromising off-gassing. Its unique formulation makes it stretchable, moldable, and self-sealing, sticking to itself or nearly any material. Ideal for use at low temperatures (including LN2 applications) and at higher temperatures, it forms an extraordinarily liquid-tight, airtight seal for dishes, tubes, glassware, and plasticware.

Whether you're preserving sensitive biological samples or securing vessels for transport or storage, PR1MA™ Stretch is the go-to sealing solution trusted by scientists across research, pharmaceutical, academic, and industrial laboratories.

Main Attributes

• Multi-surface adaptability – Seals securely to glass, plastic, and metal surfaces
• High stretchability – Stretches up to 350% for a snug, custom fit
• Self-sealing – Sticks to itself and forms a tight wrap around irregular surfaces
• Liquid-tight barrier – Ideal as an overwrap for caps, lids, and stoppers
• Flexible and translucent – Allows for easy visual inspection of contents
• RNase & DNase free – Safe for molecular biology applications
• Latex-free – Suitable for sensitive lab environments
• Cold and heat resistant – Maintains performance in a wide range of temperatures

PR1MA™ Extra Stretch Sealing Film also comes in sterile sheets.

When sterility matters, choose PR1MA™ Extra Stretch Sealing Film Sterile Sheets. Pre-cut in 2 x 4 In. and 4 x 4 In. sheets, these sterile seals are perfect for petri dishes, flasks, plates, and other containers. Packaged in resealable bags of 100 ready-to-use sheets, they eliminate the need for measuring or cutting.

PR1MA™ Sealing Mats

PR1MA™ 96Well PCR Sealing Mats are high-quality, reusable silicone mats designed to provide a secure, evaporation-resistant seal for 96-well PCR plates. Measuring 4.67 In. (L) x 2.90 In. (W), These mats fit standard 96-well formats and help maintain sample integrity during PCR and other laboratory workflows.

The pierceable silicone construction allows for easy sample access with pipette tips or needles without compromising the seal, reducing the risk of contamination or sample loss. PR1MA™ sealing mats are engineered to minimize evaporation, helping ensure consistent and reliable experimental results. Suitable for use across medical, pharmaceutical, food industry, and molecular biology applications, these sealing mats are rigorously tested and certified free of detectable RNase, DNase, DNA, and PCR inhibitors, making them ideal for sensitive molecular assays.

Main Attributes

• Pierceable silicone sealing mat for convenient sample access
• Evaporation-resistant seal to minimize sample loss
• Compatible with standard 96well PCR plates
• Dimensions (L x W): 4.67 x 2.90 In.
• Suitable for medical, pharmaceutical, food, and molecular biology use
• Certified free of RNase, DNase, DNA, and PCR inhibitors

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