4" Parafilm M Sealing Film & Petri Dish Tape

$43.99

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Parafilm M is a self-sealing, semi-transparent, flexible, odorless thermoplastic film that provides a waterproof barrier for covering laboratory vessels including petri dishes, jar lids, and more. It is gas permeable with low water permeability and ideal for use in culture applications as it does not affect oxygen or carbon dioxide permeability.

Nontoxic material is resistant to acids, alkalis, alcohols and organic solvents. Moisture proof sealing film stretches up to 200% for a secure fit on irregular-shaped surfaces.

Note: Because it melts quickly when heated, Parafilm M is not safe for use in autoclaves or pressure cookers.

Frequently Asked Questions

We recommend absolute beginners start with our Spray & Grow Kits, which make growing mushrooms at home super easy.

We want you to have the best possible experience with every North Spore product and guarantee free replacements within 30 days of receipt for any damaged, contaminated, or unusable product.

Absolutely! Mushroom cultivation is a great activity to do with the whole family, whether you'd like to grow indoors or outdoors. If you're new to mushrooms, we recommend starting with a Spray & Grow Kit or a Plant & Grow Kit – both make it easy to grow fresh, organic mushrooms at home.

We are vertically integrated — from culture work all the way to spawn and substrate production — ensuring a quality end product. And our staff mycologists keep up to date on all best practices in our field. Additionally, we have a dedicated QAQC team that tests every batch of grain and substrate before it’s inoculated.

Cluster of brown-capped mushrooms with long, light-colored stems against a white background.

Your Trusted Source for Premium Mushroom Growing Supplies

Whether you’re growing mushrooms at home, in your garden, or at a commercial scale, we offer everything you need to cultivate success. We start with the highest-quality OMRI-listed ingredients, mix them in our state-of-the-art facility, and inoculate them in our custom-built lab, so you can rest easy knowing your product will yield the best results.

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