Because the terminal plays a very important role in the electrical connection, the materials used for the Cord End Terminals must be above the standard in terms of flame retardancy, insulation, impact resistance and other technical indicators, and the product material stability. At present, the terminal materials on the market mainly include polycarbonate, urea resin (electric jade powder) and ABS engineering plastics.

1. Polycarbonate, commonly known as bulletproof rubber. It is a thermoplastic engineering plastic with excellent comprehensive properties. It has the advantages of high toughness, high heat resistance, high flame retardancy, high electrical insulation performance, anti-ultraviolet rays, stable color and no discoloration. It is widely used in automobiles, electrical and electronic, construction, Office equipment, packaging, sports equipment, appliances, household goods, etc. Most of the switch sockets are used to make panels, frames and shells, and a small part of the back seats are also made of PC materials.

2. Urea resin, also known as urea-formaldehyde resin, UF, its compression molding powder is commonly known as electric jade powder. It was the main material for domestic production of switch sockets before the 1990s. Compared with the PC material, the insulating material used for electrical products has poor impact resistance, resistance, insulation performance and resistance, and is easy to change color, and the surface will appear rough when touched too much. It is a kind of material that is widely used in medium and low grades, and is mostly used to make panels of switches and sockets.

3. ABS, acrylonitrile-butadiene-styrene terpolymer, is a general-purpose engineering plastic with diverse varieties and wide uses, also known as "general-purpose plastics". It is also the main material for domestic production of switch sockets before the 1990s, and is currently mainly used for the production of bottom boxes. Although ABS has surface hardness, its impact resistance and flame retardancy are poor, and it is easy to oxidize and discolor, and the surface will turn yellow after use. However, many low-grade and ultra-low-grade switch and socket products still use ABS to make panels, frames and fixing frames, and it is not known that they are ABS, but only engineering plastics.

It is worth noting that the switch sockets made of ABS are generally used more in some new commercial buildings, and are not suitable for home decoration at all.