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FREQUENTLY ASKED QUESTIONS

We've compiled answers to some of the most frequently asked questions below.

If you can’t find the answer you're looking for or need further help, feel free to reach out anytime.

laboratory sealing film_waxfilm_waxfilm south africa

WHAT IS WAXFILM AND WHAT ARE ITS PRIMARY USES IN THE LAB?

Waxfilm is a versatile, self-sealing parafilm designed to cover and protect lab items such as test tubes, beakers, petri dishes, and more. Its primary uses include minimizing moisture loss, preventing contamination, and ensuring the integrity of your samples. Waxfilm adapts to various shapes and sizes, making it ideal for a wide range of laboratory applications.

HOW DOES WAXFILM HELP IN MAINTAINING THE INTEGRITY OF SAMPLES?

Waxfilm maintains sample integrity by providing a reliable moisture barrier that prevents evaporation and contamination. Its hydrophobic properties ensure that aqueous liquids are easily managed, and its ability to stretch up to 400% of its original length allows for efficient coverage of irregular surfaces. This tight seal helps protect samples from external factors that could compromise their quality.

IS WAXFILM COMPATIBLE WITH DIFFERENT CHEMICALS AND SOLVENTS?

Yes, Waxfilm is compatible with a variety of polar substances, including saline solutions, inorganic acids, and alkaline solutions. It can withstand exposure to these substances for up to 48 hours, making it a reliable choice for diverse laboratory applications. However, it is not resistant to high temperatures and will soften at 68°C.

CAN WAXFILM BE REUSED, AND IF SO, HOW MANY TIMES?

Waxfilm is designed to be durable and can be reused multiple times, especially when handling anhydrous materials. Its superior strength means it won't tear easily, even when wrapped around sharp objects. However, the number of reuses will depend on the specific application and handling conditions.

Self Sealing Film Universal Lab Parafilm Covers

HOW DOES WAXFILM COMPARE TO OTHER LABORATORY SEALING FILMS?

Waxfilm stands out due to its exceptional stretchability, hydrophobic properties, and durability. It can stretch up to 400% of its original length, making it more adaptable to various shapes and sizes compared to other sealing films. It's odourless, colourless, and translucent properties reduce the risk of contamination and data corruption, providing a clear advantage in maintaining sample integrity and experiment accuracy.

WHAT ARE THE PERMEABILITY CHARACTERISTICS OF WAXFILM?

Waxfilm has specific permeability rates for different gases:

Oxygen: 150 ml/m² d at 23°C and 50% relative humidity (ASTM 1927-98)

Carbon Dioxide: 1200 cc/m² d at 23°C and 0% relative humidity (modulated infrared method)

Water Vapor: 

Flat: 1 g/m² d at 38°C and 90% relative humidity (ASTM F1249-01)

Crease: 1 g/m² d at 38°C and 90% relative humidity

WHAT IS THE TEMPERATURE TOLERANCE OF WAXFILM?

Waxfilm can withstand low temperatures down to -80°C, making it suitable for a wide range of laboratory conditions.

ARE THERE ANY SOLVENTS WAXFILM SHOULD NOT BE USED WITH?

Waxfilm is not recommended for use with chlorinated, non-polar aliphatic, and aromatic solvents as it can become soft and viscous at temperatures between 130° to 154°F (54° to 68°C).

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