Suzhou Oushida Hot Melt Machinery Equipment Co., Ltd.

What is the relationship between the viscosity and stickiness of hot melt adhesive?

Company Profile

Suzhou Oushida Hot Melt Adhesive Machinery Equipment Co., Ltd. is a high-tech enterprise specializing in the research and development, production, sales and technical consulting of hot melt adhesive intelligent spraying equipment.

Some customers have questions when discussing the hot melt adhesive gluing process with us: "What is the relationship between the viscosity and stickiness of hot melt adhesive?"

Strictly speaking, "viscosity" and "stickiness" are two concepts. The so-called viscosity is an important parameter of hot melt adhesive. Viscosity is also called viscosity, which refers to the thinness and thickness of hot melt adhesive in the molten state, and has a direct relationship with temperature and fluidity. When the temperature is high, the fluidity is better; the lower the temperature, the worse the fluidity.

The lower the viscosity, the better the fluidity of the hot melt adhesive, the easier it is to glue out, and the less stringing. The disadvantage is that the internal torque is not enough, which easily leads to the separation of the adhesive. The higher the viscosity, the worse the fluidity of the hot melt adhesive, the higher the melting point, and the more stringing. The advantage is that the internal torque is sufficient, and the problem of direct separation of the adhesive will not occur. Only when you know which specific material to stick to, can you compare which hot melt adhesive has better viscosity.

Viscosity refers to the performance of bonding, which has a great relationship with the amount of glue applied. During use, the larger the area of ​​glue applied, the better the adhesion. If the industrial field has high requirements for the adhesion of hot melt adhesive, the amount of glue applied can be appropriately increased. When the amount of glue applied is increased, the adhesion will naturally be improved.

Different materials require different hot melt glues, and the melting temperature of each hot melt glue is also different, so when operating the hot melt glue machine, the melting temperature of the equipment should be set according to the glue temperature. For specific operation details, you can ask professional engineers.

Oushida hot melt adhesive machine list