Does ultraviolet light pass through cling film?

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  • 1 decade ago
    Favourite answer

    Yes. Polyethylene (plastic wrap) has a couple of absorption lines in the blue part of the spectrum, but is transparent to UV.

  • 1 decade ago

    Plastic wrap is mostly transparent through the deep UV. Polyethylene (e.g., Glad Wrap) cuts off around 200 nm and the film is very thin. Plasticized PVC (Reynolds plastic wrap) will cut off around 240 nm, but it is so thin it hardly makes a difference.

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