what should you pay attention to when using tpu hot melt adhesive film?

what should you pay attention to when using tpu hot melt adhesive film? tpu hot melt adhesive film is a very widely used hot melt adhesive film in the hot melt adhesive series. matching its wide range of applications is its relatively rich selection of types. for customers who have never used hot melt adhesive film products , you should pay attention when using tpu hot melt adhesive film correctly.

surface treatment of sticky objects

the surface treatment of tpu hot melt adhesive film is not as strict as other adhesives, but the dust and oil on the surface of the adherend should also be properly treated, so that the tpu hot melt adhesive film can work better.

temperature resistant

tpu hot melt adhesive film is relatively sensitive to temperature. when the temperature reaches a certain level, the hot melt adhesive film begins to soften. below a certain temperature, the tpu hot melt adhesive film will become brittle. therefore, the selection of tpu hot melt adhesive film needs to take into account the material's adaptability to environmental temperature changes.

adhesion

the viscosity of tpu hot melt adhesive film is divided into early viscosity and late viscosity. only when early bonding and late bonding are consistent can the adhesive film and adherend remain stable. during the production process of the adhesive film, it should be ensured that it has antioxidant properties, halogen resistance, acid and alkali resistance and plasticity. the viscosity of the adhesive film varies depending on the material to be pasted. therefore, different types of tpu hot melt adhesive films need to be selected according to different materials.

color

because the colors of the objects to be attached are different, the color standards of the tpu hot melt adhesive films also need to be different. if the object being pasted has no special color requirements, it is recommended to use yellow film. typically, yellow film is stickier than white.

working hours

quick operation is a major advantage of tpu hot melt adhesive film. the working time of tpu hot melt adhesive film is usually 15 seconds. in recent years, with the application of production methods - assembly line operations, the working time of adhesive films has become shorter, such as book binding, speaker manufacturing, etc. the operation time needs to be 5 seconds.

the above are the things to pay attention to when using tpu hot melt adhesive film. if you want to know more about tpu hot melt adhesive film, please call us for consultation.