Perlite is a lightweight material, so its incorporation into monolayer films can help reduce the film's overall density. This can be advantageous in applications where weight reduction is important, such as in lightweight packaging or construction films.

Perlite is naturally fire-resistant, and its addition to monolayer films can improve their fire resistance properties. Films containing perlite may find use in applications requiring higher fire safety standards, such as building construction films and flame-retardant packaging. Perlite can increase the porosity of monolayer films, making them more breathable and allowing for better air circulation. This can be advantageous in applications like agricultural films, where air exchange with the environment is essential for plant growth.