Parafilm M Sealing Film 4 Inch Width X 250 Foot Roll Length, Natural For use with Test Tubes, Beakers, Vials, Petri Dishes, Flasks

• Moisture-proof film molds to surface
• Parafilm M is a semi-transparent, flexible, thermoplastic film with two-way stretch
• Non-toxic 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 tetrachlorid
• Protect the integrity of research applications with a tight moisture-barrier that holds a strong seal and doesnt 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
• Stretches more than 200% of original length
• Resistant up to 48 hours against many polar substances such as saline solutions, inorganic acids and alkaline solutions

Product Specifications