The Gold Standard for Mycology & Laboratory Sealing – Parafilm M Alternative

Why Paraffin Film is the Gold Standard

In the lab, consistency is everything. While standard PE films are great for daily work, our PM992 Paraffin Film is engineered for long-term genetic security. Because it is a wax-based hydrophobic material, it creates a “moisture-lock” that is far superior to standard plastics, yet lets gas exchange.

Why Parafilm? Keeps cultures sterile, prevents drying, allows gas exchange – the ultimate protector for your master cultures!”

Key Benefits for the Serious Grower:

• Zero Desiccation: The paraffin barrier holds moisture inside the plate with incredible efficiency. This prevents “Agar-Shrink,” keeping your media hydrated and your mycelium healthy even in dry incubators or long-term cold storage.

• Selective Permeability: It dispels liquid water while remaining “breathable” for gases. It allows the O₂ in and CO₂ out, preventing the “stalling” often seen with non-breathable seals.

• Traceless & Clean: Our PM992 grade is a “traceless” film. It conforms to the shape of your Petri dishes and test tubes through tension, not adhesives. When you’re ready to transfer, it peels off cleanly without leaving a waxy residue on your glass or plastic.

• UV & Temperature Stable: Designed to remain pliable in laboratory environments, it won’t become brittle or crack over time, ensuring your seal remains hermetic for months.

• Advanced Stretch Capability: With a 500% stretch ratio, it moulds perfectly to irregular shapes, from Petri dishes to Erlenmeyer flasks and test tubes.
• Convenience in Every Cut Whether you prefer the continuous 15m roll for custom lengths or the pre-cut boxed strips for sterile, one-handed use, our Paraffin Film is sized at 3cm wide to eliminate waste.

SPeS Notes:

“Think of PE Grafting Film as your everyday workhorse and Paraffin Film as your ‘Vault’ seal. In the STS lab, we use PE Grafting Film for our fast-moving production plates, but we always switch to this Paraffin Film for our Master Cultures and Slants. The extra water retention and UV stability make it the only choice for protecting our long-term genetic library.

The SPeS Advantage: 3cm Precision

Most laboratory rolls come in a cumbersome 10cm width box, requiring you to use unsterile scissors in your Flow Hood to cut strips. Our film is pre-sized at 3cm (30mm) wide.
And to make it even easier, we offer 10cm pre-cut lengths… No scissors, no fuss, no contamination. These pre-cut paraffin strips come in protective box, ensuring they remain sterile and easy to handle until the moment you seal your agar plate. This “No-Waste” design is the perfect width for Petri dishes —just peel, stretch, and wrap.

📺 See it in Action: Proper Parafilm Technique