Parafilm® is a semi-transparent flexible thermoplastic film with 2-way stretch. It is stretchy ductile and malleable and adheres to irregular shapes and surfaces to provide a secure moisture proof seal. The film is non-toxic and offers good resistance to acids alkalis and some organic solvents. Excellent for the temporary sealing of laboratory vessels. Roll Size: 100mm x 38MComprises of waxes and polyolefins