PVC heat shrink tubing is our company's main product, and we have over ten years of experience in production. We also have a certain say in sub category products.

Firstly, let's understand what PVC is in PVC heat shrink tubing.

Polyaminoethylene PVC is a white powder with an amorphous structure, with a low branching degree and a relative density of around 1.4. The glass transition temperature is between 77 and 90 ℃, and it begins to decompose at around 170 ℃. It has poor stability to light and heat. When exposed to sunlight for a long time or above 100 ℃, it decomposes to produce hydrogen chloride, which further catalyzes the decomposition, causing discoloration and rapid decline in physical and mechanical properties, In practical applications, stabilizers must be added to improve stability to heat and light.

What are the current advantages of PVC?

PVC is a plastic material, also known as polyvinyl chloride, which is one of the most produced plastic products in the world. It can be divided into soft PVC and hard PVC. Soft PVC accounts for one-third of the market, while hard PVC accounts for two-thirds of the market; PVC is the world's largest plastic product in terms of production, low price, wide application, and stable chemical properties. It is widely used in the electronics, electrical industry, toys, raincoats, sandals, hot water bags, and other industries. (Glass fiber casing)

Structure of PVC heat shrink tubing

PVC heat shrink tubing is made of PVC (polyvinyl chloride) resin powder, mixed with pigments, plastic plasticizers, and other auxiliary materials. It is formed by high-speed kneading, extrusion, positive pressure expansion, and cooling. It utilizes the "memory reduction" effect of plastic to achieve the effect of heating shrinkage.

The use of PVC heat shrink tubing

Environmental protection (in line with the EU RoHS directive), insulation, widely used in electronic products such as electrolytic capacitor and inductors, as well as various batteries, lighting, wire harnesses, and bus bars, can play a moisture-proof, insulation, and aesthetic effect on products.

Why are many customers willing to come to Shunbo to buy PVC heat shrink tubes

1. Because we are using PVC, processing aids, reinforcing agents, The selection process of raw materials has undergone strict control and layer by layer screening, fundamentally eliminating low-level errors caused by material issues.

2. SUNBOW is also willing to invest in mechanical updates, and we are several levels ahead of our peers in terms of equipment.

3. SUNBOW also has strong learning ability. If we find that our peers' casings are better than ours during the production process, we will have the courage to acknowledge and continuously improve our products through learning.