The glue used on tape products is divided into water-based acrylic glue, which is environmentally friendly and also called pressure-sensitive adhesive. There are also oil-based ones. The key is to choose different tape products based on the purpose of the product.
For example, the suitable humidity for tape products made of pressure-sensitive adhesive is about 55%~80%R. When the temperature is greater than 80%, the tape contains less solvent or water, which is not easy to dissipate, covering part of the tape's stickiness or the surface of the adhered object will also absorb water to form a weak interface. Thereby reducing the bonding effect of the tape.
For example, in winter, when the relative humidity is lower than 55% in dry and cold weather, the adhesive and the surface of the adhered object are too dry, which will cause certain obstacles to the adhesive wetting and penetration process of the tape. The decrease in humidity will increase the dust concentration in the air, and the dust on the surface of the adhered object will affect the adhesive performance of the tape.
Two main factors affecting the bonding strength of tape products: the viscosity of the adhesive of the tape product and the external force. The viscosity of adhesive is mainly related to the type of adhesive and its formula, which is also the most important internal factor. External force refers to the use environment, such as temperature or humidity, which will have a direct impact on the bonding effect, as well as the material of the adhered object and its surface cleanliness, etc. These are all external influencing factors.
