Opaque shrink-wrap, on the other hand, is preferred in situations where discretion, UV protection, and aesthetics are critical. Commonly available in white or blue, it can also be custom-produced in other colors. Its key advantage lies in its natural UV barrier properties, even without additional stabilization — simply due to its opacity.
A white opaque shrink-wrap reflects sunlight and limits heat buildup under the packaging, making it ideal for heat-sensitive products. Conversely, black or dark blue film absorbs heat and can transfer it to the product. Therefore, selecting the right color of opaque shrink-wrap is crucial and should be based on climate conditions and the nature of the goods being protected.
Durability influenced by color
Not all colors age the same way. Short-wave colors like white or blue retain their opacity for a longer time, while long-wave colors like red tend to fade more quickly under sunlight.
A matter of function and context
In summary, whether you choose opaque or clear shrink-wrap, it should be selected according to its intended use: visibility, confidentiality, thermal insulation, or UV protection.
