Also referred to as self-fusing tape, self-amalgamating tape is a non-sticky tape that will only adhere to itself. To amalgamate means “to mix or merge so as to make a combination; blend; unite; combine.” So, when one layer of tape is stretched and placed over another layer of self-amalgamating tape, the two layers ‘blend’ or ‘combine’ to become a solid piece.
Self-fusing silicone rubber products were first created in the United States in the 1950s. The technology was originally developed by university scientists and engineers for the US military, who wanted an alternative to PVC electrical tape.
What is electrical tape?



One of the key advantages of butyl rubber strip is its exceptional resistance to extreme temperatures, making it an ideal choice for sealing and insulation purposes in environments with high heat or cold. Its ability to maintain flexibility and elasticity in a wide temperature range ensures a secure and tight seal, protecting against leaks and moisture ingress.

One of the primary uses of black PVC tape is for electrical insulation. It is commonly used by electricians to wrap and insulate exposed wires, preventing electric shocks and short circuits. The tape's flexibility allows it to conform to various shapes and sizes, ensuring a snug fit around cables and connections. Furthermore, its strong adhesive properties ensure that it adheres securely, minimizing the risk of it peeling away over time. The tape can withstand high temperatures, making it ideal for both indoor and outdoor electrical applications.
One of the most notable characteristics of insulation cotton tape is its ability to effectively manage temperature fluctuations. In an environment where heat is a constant concern, the tape serves as a barrier to prevent heat loss or gain. This function is particularly pivotal in the automotive sector, where automotive manufacturers utilize this tape to insulate wiring and components, ensuring that the vehicle operates efficiently under varying temperature conditions. By reducing heat build-up, insulation cotton tape can enhance the longevity of critical parts, contributing to a vehicle’s overall performance and reliability.
Here at Swift, we stock a number of different electrical tapes. Some are adhesive, some are not and somewhere in the middle are our self-fusing tapes. These don't stick to surfaces but they do stick to themselves.