Mr. Zhang is the technical director of a domestic new energy vehicle giant. Before contacting SUNBOW, he developed many suppliers of PVC heat shrinkable tubes and PE heat shrinkable tubes for their new energy vehicle battery projects, but the quality did not meet their design. Effect. When he was distressed, Mr. Zhang thought of SUNBOW, who participated in the Hannover Messe in Germany in 2019. At that time, Mr. Zhang went abroad for inspection and participated in the exhibition by the way. There was only a brief exchange at the exhibition, and business cards were exchanged with each other.

After receiving Mr. Zhang's email, we understood the customer's needs. We SUNBOW specially developed a halogen-free flame retardant polyolefin heat-shrinkable tube for battery capacitors. The halogen-free flame-retardant polyolefin heat-shrinkable tube for battery capacitors is made of radiation cross-linked polyolefin material, with excellent physical and chemical properties and ultra-thin wall thickness. , high hardness, easy to wear tubes and other characteristics, mainly used in batteries and capacitors, play the role of insulation protection, can completely replace the use of PVC heat shrinkable tube and PET sleeve, and passed UL certification, solve the problem of PVC heat shrinkable sleeve It is a big problem for the insulation protection of batteries without UL flame retardant certification. Customers who have requirements are good customers. Within 2 days, we designed special raw materials and production processes according to Mr. Zhang's requirements. Within 2 days, we produced samples, and after testing, various performance indicators met customer requirements.

We confidently sent samples of halogen-free flame retardant polyolefin heat shrink tubing for battery capacitors. After 10 months of testing by the customer, our SUNBOW's halogen-free flame retardant polyolefin heat shrinkable tube for battery capacitors fully meets the requirements. The final customer finalizes the halogen-free flame retardant polyolefin heat shrinkable for SUNBOW battery capacitor Guan successfully entered the domestic well-known new energy vehicle power battery project.

At present, there are many merchants selling heat shrinkable tubes in the market. The price difference between high and low is too big, mainly because most of them are not factories. Even if some are factories, they are not completely self-produced. Most factories can only do extrusion. The processes of irradiation, expansion and gluing are all sent to powerful factories, and our SUNBOW has one-stop production equipment and one-stop production capacity. It is one of the only three factories in China. one.

Why SUNBOW's halogen-free flame retardant polyolefin heat shrinkable tube for battery capacitors can gain the trust of domestic new energy vehicle power battery giants?

1. SUNBOW uses international big-name polyolefin raw materials, the plasticity is 2 times higher than that of domestic small-brand ones, and the sleeves produced will have better expandability and shrinkage effect.

2. SUNBOW is produced by imported equipment from Japan. Whether it is extrusion, irradiation or expansion, the tolerance range control of the inner diameter has reached the international standard and there is no wall deviation in shrinkage, which is comparable to the American brand Tyco.

3. SUNBOW has a unique formula, and the addition of flame retardants is controlled in an appropriate proportion, so that the heat shrinkable tubes produced are not only flame retardant but also have better heat shrinkage performance.

The halogen-free flame-retardant polyolefin heat-shrinkable tube developed by SUNBOW for battery capacitors has successfully solved the problem that PVC heat-shrinkable tubes are widely used in the industry as insulation protection for power batteries, because these heat-shrinkable tubes have not passed the UL flame retardant rating. This is the pain point of the entire industry. If you are still troubled by the lack of suitable insulation and protection materials for batteries, you are welcome to choose the halogen-free polyolefin heat shrinkable tube for battery capacitors from SUNBOW.