Parafilm sealant

Parafilm M is a semi-transparent, flexible thermoplastic film with two-way stretch that delivers a tight moisture barrier seal for laboratory use. It clings securely to glassware and irregular surfaces and maintains its hold even during off-gassing. Odorless, colorless, and non-toxic, it is free from plasticizers and primarily composed of polyolefins and paraffin waxes for dependable resistance to many acids, alkalis, and some organic solvents. Engineered to stretch over 200% of its original length, Parafilm M helps prevent moisture and volume loss while reducing the risk of tampered data.

Parafilm sealant

By: Bemis

Parafilm sealant

Subtotal: $370.61
Subtotal with Autoship: $352.08
✓ Free shipping on orders over $100
🚚 Usually delivered in 1-5 days

Parafilm M is a semi-transparent, flexible thermoplastic film with two-way stretch that delivers a tight moisture barrier seal for laboratory use. It clings securely to glassware and irregular surfaces and maintains its hold even during off-gassing. Odorless, colorless, and non-toxic, it is free from plasticizers and primarily composed of polyolefins and paraffin waxes for dependable resistance to many acids, alkalis, and some organic solvents. Engineered to stretch over 200% of its original length, Parafilm M helps prevent moisture and volume loss while reducing the risk of tampered data.

About This Item

  • Sealing and protecting labware and materials during embryo transfer procedures; creating a tight moisture barrier to help prevent moisture and volume loss.
1 x 1-roll box

What is Parafilm M used for?

Parafilm M is a laboratory sealant film used to create a tight moisture barrier on glassware and various surfaces, making it suitable for sealing tasks during embryo transfer procedures.

What are the roll dimensions?

Each roll measures 4 inches wide by 125 feet long and is supplied in a 1-roll box.

Is Parafilm M non-toxic and plasticizer-free?

Yes. It is non-toxic, free from plasticizers, and primarily composed of polyolefins and paraffin waxes.

How much can Parafilm M stretch?

It stretches more than 200% of its original length, allowing it to cling securely to irregular shapes and surfaces.

Which chemicals should Parafilm M not be used with?

Use is not recommended with acetone, diethyl ether, or tetrachloride.

How chemically resistant is Parafilm M?

It offers good resistance against acids, alkalis, and some organic solvents, and is resistant for up to 48 hours against many polar substances such as saline solutions, inorganic acids, and alkaline solutions.

Does Parafilm M maintain a seal during off-gassing?

Yes. It creates a strong moisture-barrier seal that does not release from glassware despite off-gassing.

Pet Health Benefits

Every product we carry at PetMeds Direct is selected with care to support your pet's health from nose to tail.

Pain Relief

Vet-approved medications to reduce inflammation and ease joint or post-surgery pain

Heart Health

Supplements and meds that help manage blood pressure and support cardiovascular function

Disease Prevention

Vaccines and immune-boosting supplements help reduce the risk of serious illness

Skin & Coat Care

Dermatology products and omega-rich formulas promote healthy skin and a shiny coat

Happy Pet Parents

Not sure how to get started with PetMeds Direct? We make caring for your pet easier than ever — whether it's managing prescriptions, stocking up on supplements, or getting expert advice. Explore below for helpful ways pet parents use PetMeds Direct to stay on top of their pets' health. At PetMeds Direct, we're proud to serve pet lovers all across Canada.

About PetMeds Direct

PetMeds Direct was founded with one simple mission: to make pet healthcare easier, faster, and more compassionate for Canadian pet parents. What started as a small idea — helping busy families manage their pets’ prescriptions — has grown into a trusted nationwide pharmacy serving dogs, cats, and everything in between. We believe pets are family, and every tail wag and purr deserves top-tier care. That’s why we work closely with vets, offer fast shipping, and make prescriptions and wellness products more accessible than ever. At PetMeds Direct, we’re not just delivering meds — we’re delivering peace of mind.

Healthy Pets, Happy Homes

Caring for your pet’s health has never been easier. With just a few clicks, PetMeds Direct delivers trusted medications and wellness products right to your door — fast, affordable, and vet-approved. Say goodbye to last-minute pharmacy runs and hello to peace of mind.

Trusted & Certified

PetMeds Direct is a licensed and certified pharmacy, committed to providing safe, authentic medications for your pets.

Accreditation No. 311012