The use effect of hot melt adhesive film may change due to these conditions

1. Surface treatment of attachments
The surface treatment of hot melt adhesive film is not as strict as other adhesives, but the dust and oil stains on the surface of the adhesive should also be treated appropriately so that the hot melt adhesive film can play a better role.
2. Temperature resistance
The hot melt adhesive film is sensitive to temperature. When the temperature reaches a certain level, the hot melt adhesive film begins to soften. Below a certain temperature, the hot melt adhesive film will become brittle. Therefore, the selection of hot melt adhesive film must fully consider the temperature changes of the environment in which the product is located.
3. Stickiness
The viscosity of hot melt adhesive film is divided into early viscosity and late viscosity. Only when early adhesion and late adhesion are consistent, can the hot melt adhesive film and the adherend remain stable. In the production process of hot melt adhesive film, it should be ensured that it has oxidation resistance, halogen resistance, acid and alkali resistance, and plasticity. The viscosity of the hot melt adhesive film varies depending on the material to be pasted. Therefore, different hot melt adhesive films should be selected based on different materials.????
4. Color
Due to the different colors of the objects being pasted, the color requirements for the hot melt adhesive film should also be different. If there are no special color requirements for the object being pasted, it is recommended to use a yellow hot melt adhesive film. Generally speaking, yellow hot melt adhesive films are more sticky than white ones.
5. Working hours
Quick operation is a major feature of hot melt adhesive films. The working time of the hot melt adhesive film is generally around 15 seconds. With the widespread application of modern production methods - assembly lines, the operating time of hot melt adhesive films is becoming shorter and shorter, such as book binding, speaker manufacturing, etc. The operation time needs to reach about 5 seconds.