With heat-shrinkable anti-corrosion tape for pipelines and viscoelastic anti-corrosion tape are widely used in combination. Transactions for these products are often priced by weight, making density a key concern for many customers. The density of heat-shrinkable anti-corrosion tape for pipelines is also related to its quality.

Heat-shrinkable anti-corrosion tape for pipelines is made from polyethylene-based materials that have undergone radiation crosslinking, along with butyl rubber modified polyisobutylene adhesive, through a thermal composite process. During use, surface heating causes the outer polyethylene layer to shrink and the inner adhesive layer to melt. It adheres tightly to the viscoelastic anti-corrosion tape layer, providing excellent protection and achieving secondary anti-corrosion effects for the substrate requiring corrosion protection. The density of polyethylene is around 0.95g/cm³, while the density of butyl rubber and polyisobutylene adhesive is 1.10g/cm³. The anti-corrosion adhesive, which requires a small amount of filler, is only 1.05g/cm³.

Taking a product with a base material thickness of 1.30mm and an adhesive layer thickness of 1.50mm as an example, its weight per square meter is 2.94kg. Therefore, the density of the heat-shrinkable anti-corrosion tape for pipelines is 1.05g/cm³.