Plastic tube sleeves are caps made by processing plastic as the main raw material. Plastic is a class of synthetic high polymer materials with plasticity. It, along with synthetic rubber and synthetic fibers, forms the three indispensable synthetic materials in today's daily life. Specifically, plastics are primarily composed of synthetic resins and can be shaped under conditions of temperature and pressure. Plastic tube sleeves maintain their shape at room temperature. The main performance characteristics of plastic compared to other materials include the following aspects.

Lightweight plastic is a material that is relatively light, with a relative density ranging between 0.90-2.2.

2. Thermal insulators offer sound absorption and vibration reduction. Generally speaking, plastics have low thermal conductivity, equivalent to 1/75 to 1/225 of steel. The micropores in foam plastics contain gas, which enhances their thermal insulation, soundproofing, and shock resistance.

3. Excellent chemical stability: The majority of plastics exhibit good resistance to corrosion from acids, alkalis, and other chemicals.