Heathrow Scientific Parafilm is a highly versatile and waterproof film that is widely utilized in scientific, medical, and industrial environments to seal and safeguard containers. It is composed of a combination of waxes and polyolefins, allowing it to stretch up to 200% of its initial size. This exceptional flexibility enables Parafilm to create a secure and moisture-resistant seal over various types of containers, including test tubes, beakers, flasks, and petri dishes. Its ability to conform to irregular shapes ensures that the contents remain protected from both contamination and evaporation.