Yellow Waxed Tubing

Our Yellow Waxed Tubing is a traditional insulation sleeve. Its full name is yellow waxed tubing. The number 2715 is the Chinese national standard. How is it made? First, we braid a glass fiber tube. Then we dip the braided tube into insulating wax. The wax fills the gaps between the fibers. We take it out and let it cool. The wax hardens. The tube now has insulation properties. Our Yellow Waxed Tubing is soft. It can bend in any direction. It does not crack. A water heater factory came to us. They needed an insulation sleeve that could handle 130°C. They needed to put it over the lead wire of a heating tube. The lead wire had to bend 90 degrees. A hard tube could not bend. We recommended our Yellow Waxed Tubing. It is soft. It bends easily. They tested it. The voltage withstand was 1800 V. The heat resistance was 130°C. Both passed. Now they buy 50,000 meters of our Yellow Waxed Tubing every month.

The breakdown voltage of our Yellow Waxed Tubing depends on wall thickness. For 0.5 mm wall thickness, the breakdown voltage is 2 kV. For 1 mm wall thickness, it is 4 kV. The temperature class is B (130°C). Flame retardancy meets UL94 V2. We can make inner diameters from 1 mm to 30 mm. Wall thickness from 0.3 mm to 1.5 mm. The standard color is yellow. We can also do white or red on request. Our Yellow Waxed Tubing is low in price. It is very flexible. It is easy to install. Many senior engineers still ask for it by name because it is reliable.