Amco PARAFILM 4"X 125FT Laboratory Film

PARAFILM stretches up to 200% and clings even around irregular shapes and surfaces. The sealing film is free of plasticizers and consists primarily of polyolefins and paraffin waxes. PARAFILM M is resistant up to 48 hours against many polar substances, eg saline solutions, inorganic acids and alkaline solutions.
Protect the integrity of research applications with a tight moisture-barrier that holds a strong seal and doesn′t release from glassware, despite off-gassingReduce the risk of tampered data with a covering that is odorless, colorless and semi-transparentPrevents moisture and volume loss due to material composition and tight sealFlexible and self-sealing material allows it to cling around irregular shapes and surfacesStretches more than 200% of original lengthResistant up to 48 hours against many polar substances such as saline solutions, inorganic acids and alkaline solutionsPermeabilityOxygen: (ASTM 1927-98) 150 cc/m² d at 23°C and 50% RHCarbon Dioxide: (Modulated IR Method) 1200 cc/m² d at 23°C and 0% RHWater Vapor: (ASTM F1249-01)Flat: 1 g/m² d at 38°C and 90% RHCreased: 1 g/m² d at 38°C and 90% RH