Parafilm M Sealing Film, 2 Inch x 250 Foot-"Parafilm M Sealing Film 2 Inch Width X 250 Foot Roll Length, Natural For use with Test Tubes, Beakers, Vials, Petri Dishes, Flasks"
Parafilm M is a semi-transparent, flexible, thermoplastic film with two-way stretch Moisture-proof film molds to surface Nontoxic and free from plasticizers, primarily composed of polyolefins and paraffin waxes offering good resistance against acids, alkalis and some organic solvents – use not recommended with acetone, diethyl ether or tetrachloride Protect the integrity of research applications with a tight moisture-barrier that holds a strong seal and doesn't release from glassware, despite off-gassing Reduce the risk of tampered data with a covering that is odorless, colorless and semi-transparent Prevents moisture and volume loss due to material composition and tight seal Flexible and self-sealing material allows it to cling around irregular shapes and surfaces Resistant up to 48 hours against many polar substances such as saline solutions, inorganic acids and alkaline solutions Stretches to more than 200% of original length 2 inches x 250 feet Package/UOM: Each (EA); manufacturer item HS234526A.