A versatile, moisture-resistant, thermoplastic flexible plastic for a wide variety of clinical and industrial applications, Parafilm M® film has been used with confidence for years in scientific research and laboratory settings.
It is a proven fast, economical covering or stopper for test tubes, beakers, vials, petri dishes, flasks and various instruments and objects with irregular surfaces.
It is an ideal shelf or tray liner to prevent slipping of bottles or instruments. It is odorless and semi-transparent.
In laboratories, Parafilm M® sheet is a thermoplastic, self-sealing film that holds moisture loss to a minimum and offers excellent barrier protection to the contents of tubes, flasks, culture tubes, etc.
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Permeability Characteristics:
Oxygen (ASTM 1927-98): 150 cc/m² d at 23°C and 50% RH
Carbon Dioxide (Modulated IR Method): 1200 cc/m² d at 23°C and 0% RH
Water Vapor (ASTM F1249-01): 1 g/m² d at 38°C and 90% RH
Note: Because of low water permeability and the insensitivity of this material to moisture vapor, it is unlikely that differences in relative humidity (RH) will make a difference in the oxygen permeability.
Effects of Common Reagents:
Hydrochloric acid conc. (12N) dil. (5N) - no apparent effect in 24 hours
Sulphuric acid conc. (36N) dil.(5N) - no apparent effect in 24 hours
Nitric acid conc. (16N) dil. (5N) - no apparent effect in 24 hours
Sodium hydroxide conc. (22%) - no apparent effect in 24 hours
Ammonium hydroxide conc. (28% NH3) - no apparent effect in 24 hours
Potassium permanganate:
5%: no apparent effect except permanent dark brown coloration in 18 hours
0.1%: same as 5% but slightly less color
Iodine solution 0.1N: no effect except brown staining in 18 hours
Salt (NACL) solution 20%: no apparent effect in 24 hours
Ethyl Alcohol 95%: no apparent effect except some face whitening in 24 hours
Isopropyl alcohol 99%: no apparent effect in 24 hours
Not recommended for use with chorinated, non-polar aliphatic and aromatic solvents
Film becomes soft and sticky at about 130°F to 150°F (68°C)
Parafilm M® All-Purpose Laboratory Film
A versatile, moisture-resistant, thermoplastic flexible plastic for a wide variety of clinical and industrial applications, Parafilm M® film has been used with confidence for years in scientific research and laboratory settings.
It is a proven fast, economical covering or stopper for test tubes, beakers, vials, petri dishes, flasks and various instruments and objects with irregular surfaces.
It is an ideal shelf or tray liner to prevent slipping of bottles or instruments. It is odorless and semi-transparent.
In laboratories, Parafilm M® sheet is a thermoplastic, self-sealing film that holds moisture loss to a minimum and offers excellent barrier protection to the contents of tubes, flasks, culture tubes, etc.
A versatile, moisture-resistant, thermoplastic flexible plastic for a wide variety of clinical and industrial applications, Parafilm M® film has been used with confidence for years in scientific research and laboratory settings.
It is a proven fast, economical covering or stopper for test tubes, beakers, vials, petri dishes, flasks and various instruments and objects with irregular surfaces.
It is an ideal shelf or tray liner to prevent slipping of bottles or instruments. It is odorless and semi-transparent.
In laboratories, Parafilm M® sheet is a thermoplastic, self-sealing film that holds moisture loss to a minimum and offers excellent barrier protection to the contents of tubes, flasks, culture tubes, etc.
Permeability Characteristics:
Oxygen (ASTM 1927-98): 150 cc/m² d at 23°C and 50% RH
Carbon Dioxide (Modulated IR Method): 1200 cc/m² d at 23°C and 0% RH
Water Vapor (ASTM F1249-01): 1 g/m² d at 38°C and 90% RH
Note: Because of low water permeability and the insensitivity of this material to moisture vapor, it is unlikely that differences in relative humidity (RH) will make a difference in the oxygen permeability.
Effects of Common Reagents:
Hydrochloric acid conc. (12N) dil. (5N) - no apparent effect in 24 hours
Sulphuric acid conc. (36N) dil.(5N) - no apparent effect in 24 hours
Nitric acid conc. (16N) dil. (5N) - no apparent effect in 24 hours
Sodium hydroxide conc. (22%) - no apparent effect in 24 hours
Ammonium hydroxide conc. (28% NH3) - no apparent effect in 24 hours
Potassium permanganate:
5%: no apparent effect except permanent dark brown coloration in 18 hours
0.1%: same as 5% but slightly less color
Iodine solution 0.1N: no effect except brown staining in 18 hours
Salt (NACL) solution 20%: no apparent effect in 24 hours
Ethyl Alcohol 95%: no apparent effect except some face whitening in 24 hours
Isopropyl alcohol 99%: no apparent effect in 24 hours
Not recommended for use with chorinated, non-polar aliphatic and aromatic solvents
Film becomes soft and sticky at about 130°F to 150°F (68°C)
