It is commonly understood that underground warning tapes play a critical function in the construction sector. But have you ever considered how these life-saving tools are produced? In this post, we will discuss underground tapes, their two types, detectable warning tapes and non-detectable warning tapes, as well as other related matters.
What are underground warning tapes?
Underground warning tapes are pipeline-marking materials that are applied to buried or subsurface cables, mains, ducts, sewers, and, of course, pipelines. These tapes are often fluorescent in colour and have large, bold warning text.
Underground warning tapes typically come in two types:
The point of application of both of these types is defined by the nature of the pipeline they will indicate. All the pipelines having a metallic presence in them are marked by non-detectable tape whereas the pipelines that do possess any metallic element in them are marked with detectable tape.
What differentiate Detectable warning tape and Non detectable warning tapes?
All pipelines with metallic properties can be easily identified by hovering an industrial-grade metal detector over the area where they were buried. This is due to the metal detector’s ability to identify the presence of metal in underground pipelines. But what about the pipes that don’t contain any metallic elements? Detectable warning tapes are used for these because manufacturers of warning or barrication tapes include a metallic mesh or wire in these warning tapes to make them detectable by metal detectors. The presence of metal distinguishes detectable warning tape from non-detectable warning tape.
What materials are used in the making of underground warning tapes?
The major raw materials that are used in the making of underground warning tapes are polyethylene polymers. However, in the making of detectable warning tape, metals like aluminium or alloys like stainless steel are used.
Despite the fact that such tapes are made from polyethylene (a strong but non-biodegradable material), they are an environmentally friendly solution because they are made from recycled polyethylene.
Why polyethylene is used in the making of underground warning tapes?
Here are 8 reasons to explain the choice of polyethylene plastic for the making of underground warning tapes.
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