Laboratory sealing film parafilm PM-996 retail 4 inches/10cm (wide)

Description

product description
The physical properties: Parafilm is translucent, flexible, thermoplastic, high-performance waterproof material, itself is colorless, odorless, tasteless, the thickness of only 0.005 "(0.127mm) .Parafilm unique characteristics make it apply Many important experimental and technical aspects of the ideal tool, it is tight and automatically sealed in the formation of test tubes, bottles, all kinds of irregular tools and objects on the surface.It is for moisture vapor, moisture loss, moisture absorption and penetration The gas has a high degree of low sensitivity, and this feature is also an ideal cover tool for the flow cell.
Permeability: Oxygen: 150 cc / m2 / 24 hours at 73 ° F, and 50% RH Oxide: 400 cc / m2 / 24 hours at 73 ° F, and 50% RH Note: The osmotic ratio is at 0 ° C and 760 mm Under the conditions of the determination. Water vapor: flat: 88g / m2 / 24 hours at 100 ° F, and 90% RH vs. desiccant (desiccant) Folding: Same as above Note: Due to the low permeability and low sensitivity of the material itself to the water vapor, Or the permeability of carbon dioxide, both of which are fundamentally different in terms of humidity.
The impact of ordinary reagents: concentrated hydrochloric acid (12N) diluted to (5N), within 24 hours will not significantly affect the concentrated sulfuric acid (36N) diluted to (5N), within 24 hours will not significantly affect the concentrated nitric acid 22%), within 24 hours will not significantly affect the concentrated sodium hydroxide (28%), within 24 hours will not significantly affect the potassium permanganate 5%, non-long-term, in the brown environment 18 hours Significant effect of 1%, the effect of the same as above excluded in the light environment of iodine solution 0.1N: 18 hours in the brown environment no significant impact on sodium chloride 20%, within 24 hours will not have a significant impact.
The temperature characteristics: when the temperature exceeds 38 ℃, Parafilm sealing film performance began to decline, it becomes difficult to start. The sign of the performance degradation is that the film viscosity is so high that it can not extend to the length we need without rupture. Parafilm sealing film low temperature range depends on the size of the mechanical force. If the Parafilm sealing film does not stretch or bend, it can be put into liquid nitrogen without any problems. Like most plastic materials, we have to study the brittleness of materials in dry ice and liquid nitrogen environments. The Parafilm sealing film exposed to the liquid nitrogen environment can restore its original properties after returning to room temperature
Can quickly and effectively seal the laboratory of various containers, easy to use.
With waterproof and moisture-proof function, can effectively prevent the evaporation of experimental samples and pollution.
Can effectively protect the anhydrous material.
Can be folded repeatedly used, wrapped in sharp shape objects will not be torn.
Can be increased with the temperature, flexibility and softness is also a corresponding increase.
Has a good toughness, 21 ℃ can also be stretched nearly twice the length.
Packaging: retail OPP bag.
Note in use:
Don't use at high temperatures, softening at 68 ℃ with stickiness, it is recommended not to exceed this temperature.
Don't close to the fire: Although Parafilm seal film using a special "wax" as raw material, but after all wax. So it is flammable, do not use close to the use of fire.
Shelf life: paraffin film sealing film is inert, but any organic matter can not be "longer" to save. Under normal circumstances, at 7 ~ 38 ℃, the relative humidity of 50% of the storage environment, at least 3 years can be saved and invariant.
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