Heathrow Scientific LLC HS234526B - Parafilm® M Sealing Film, 4 Inch x 125 Foot - 1/Each

Parafilm M sealing film is a flexible, moisture-proof wrap that molds to the surface you cover. It comes as a 4 inch by 125 foot roll in a natural color. It is made for use with test tubes, beakers, vials, Petri dishes and flasks.

• Moisture-proof film that molds to the surface and forms a tight moisture barrier, holding a strong seal that does not release from glassware despite off-gassing
• Non-toxic and free from plasticizers
• Made primarily of polyolefins and paraffin waxes, with good resistance to acids, alkalis and some organic solvents
• Use is not recommended with acetone, diethyl ether or tetrachloride
• Odorless, colorless and semi-transparent covering, which helps you see when a sample has been disturbed
• Tight seal and material composition help limit moisture and volume loss
• Flexible, self-sealing material clings around irregular shapes and surfaces
• Stretches to more than 200% of its original length
• Resistant for up to 48 hours to many polar substances, such as saline solutions, inorganic acids and alkaline solutions
• Size: 4 inch width x 125 foot roll length
• Color: natural
• Material: thermoplastic
• For use with test tubes, beakers, vials, Petri dishes and flasks

Check that the 4 inch width suits your containers, and that the substances you work with are not acetone, diethyl ether or tetrachloride.