Parafilm Sealing Film

Parafilm Sealing Film is a thermoplastic, flexible, self-sealing sheet material commonly used to seal flasks, tubes, petri dishes, etc. Parafilm is also used to further seal a lidded container against moisture for long-term storage. Due to its stretchable, moldable, waterproof, and self-adhering properties, Parafilm holds moisture loss to a minimum.

Originally, the Parafilm product was developed for histology and other “medical” applications. Parafilm essentially was an equal blend of a hydrocarbon wax and a polyolefin. It exhibits unusual elongation properties and at 70°F, it can be stretched by more than 200% and will partially return to its original length. At 180 to 200°F, it softens sufficiently to make an adhesive bond between papers, cloths, etc. A white separation paper is used to keep one layer from sticking to another.

Supplied in a dispenser carton. Click here to purchase an acrylic dispenser designed to offer superior protection from the blade while in use. Safety is especially important as it features a super sharp blade for easy cutting. The sturdy, transparent acrylic housing allows monitoring of the film supply. Holds one or two 2” rolls or one 4” roll.

Key Features

• Colorless, durable, and moisture proof—Parafilm molds to almost any surface
• Ideal for sealing beakers, flasks, tubes, and petri dishes
• Wider parafilm seals larger containers such as trays and basins
• Parafilm 3068-61 comes in a mailing tube; all other Parafilm comes in paper dispenser box – order plastic dispensers separately

Parafilm is the trusted standard in life science labs for sealing culture vessels, sample tubes, and equipment containers during storage and incubation. Research labs, diagnostic centers, and microbiology departments use parafilm to minimize contamination and moisture loss during long-term storage and incubation protocols. Available in multiple roll widths for different container sizes. Sign in to your account or contact your sales rep for organizational pricing.

Frequently asked questions