Hot melt adhesive is the default adhesive for many tapes. It is used in polypropylene (PolyPro) tapes. It is made of thermoplastic polymers and as a result, it has good adhesion, excellent holding power, and a high tensile strength. Hot melt adhesive tapes have three layers: the non-adhesive surface layer, the release layer, and the adhesive layer. Holt melt adhesives tend to be more durable than acrylic adhesives. They can withstand large temperature fluctuations without warping or becoming brittle.
The science behind fire retardant duct tape lies in its unique composition. Unlike conventional tapes, which can quickly ignite or melt when exposed to high temperatures, this variety is impregnated with chemicals that inhibit flame growth. These chemicals work by interrupting the combustion cycle, effectively starving the fire of oxygen. Moreover, the adhesive used in these tapes is designed to maintain its integrity even under intense heat, preventing it from degrading or releasing toxic fumes. In addition to insulation, PVC electrical tape offers a high level of dielectric strength, which prevents electrical currents from passing through the tape's surface. This feature is crucial for preventing short circuits and ensuring user safety. It also has heat resistance, which makes it suitable for applications requiring exposure to moderate heat levels It also has heat resistance, which makes it suitable for applications requiring exposure to moderate heat levels

PVC (Polyvinyl Chloride) electrical insulation tape is a type of adhesive tape made from durable plastic material that is known for its excellent insulating properties. It is designed to withstand high temperatures and is resistant to moisture, chemicals, and abrasion. The tape typically comes in various colors, although black remains the most popular choice for electrical applications.
