How many levels of adhesive adhesive coated paper are there?

The glue viscosity of self-adhesive coated paper is usually divided into several levels, which are mainly divided according to the different viscosity to adapt to different use scenarios and needs.

First, viscosity grade classification

1.Low viscosity: Generally No. 4, No. 3, etc., often used to adhere to smooth surface paper and other materials. Self-adhesive labels of this viscosity grade are relatively easy to remove and are suitable for temporary or frequent label changes.

2.Medium viscosity: generally No. 6, No. 8, etc., suitable for adhesion of various surfaces, especially for printing processes such as screen printing, gravure printing, and thermal transfer printing. This viscosity grade of self-adhesive label has a certain adhesion, and can be easily removed when needed, which is suitable for a variety of conventional use scenarios.

3.High viscosity: Generally No. 10, No. 12, etc., suitable for adhering to rough surfaces, such as plastics, metals and other materials. This kind of viscosity grade of self-adhesive label has strong adhesion, can be firmly pasted on the surface that is not easy to adhere to, and is suitable for occasions that need to maintain the paste state for a long time.

4.Ultra-high viscosity: generally No. 15, No. 20, etc., strong adhesion, suitable for tough environment, high adhesion and heavy load parts. This viscosity grade of self-adhesive label can still maintain stable adhesion performance in extreme environments, and is suitable for occasions with high adhesion requirements.

Second, precautions

1.Select the appropriate viscosity level: When selecting the viscosity level of self-adhesive coated paper, it is necessary to comprehensively consider factors such as the surface material of the labeled object, the use environment, and the actual needs. Improper selection may cause the label to fall off easily or fail to fully adhere to the surface.

2.Consider the compatibility of materials and adhesives: The compatibility between different materials of self-adhesive and adhesive will also affect the adhesion effect. Therefore, care needs to be taken to ensure good compatibility between the material and the adhesive when selecting.

3.Check the product label and instruction manual: In the production process of self-adhesive, different adhesive glue ingredients will affect the viscosity level of self-adhesive. Therefore, it is necessary to carefully check the product label and instruction manual at the time of purchase to understand the specific viscosity level and scope of application.

In summary, the glue viscosity of self-adhesive coated paper is mainly divided into low viscosity, medium viscosity, high viscosity and extra high viscosity. In practical applications, it is necessary to select the appropriate viscosity grade according to the specific needs and environmental conditions.