HDPE Parafilm M, Color : Blue, Transparent for Packing, Covering

 is highly flexible and can be stretched by over 200% of its original length, allowing it to cling tightly around irregular shapes and surfaces to form a reliable seal.

• Moisture and Contamination Barrier: It provides a tight moisture-vapor barrier, which minimizes moisture and volume loss from samples due to evaporation. This helps maintain the integrity of research applications by protecting contents from contamination.
• Material Composition: The film is primarily composed of polyolefins and paraffin waxes. It is non-toxic, odorless, colorless, and free from plasticizers.
• Chemical Resistance: It offers good resistance for up to 48 hours against many polar substances, including saline solutions, inorganic acids (e.g., hydrochloric acid, sulfuric acid), and alkaline solutions (e.g., sodium hydroxide). However, it is not recommended for use with some organic solvents like acetone, diethyl ether, carbon tetrachloride, or chloroform, as these can dissolve the film on contact.
• Gas Permeability: While it prevents moisture loss, it still allows for gas permeability (oxygen, nitrogen, carbon dioxide), which is crucial for applications like microbial cultures.
• Temperature Stability: It is suitable for continuous use within a temperature range of approximately -45°C to +50°C, with a melting point of around 60°C.