Reasons for the poor adhesion of aluminum foil tape and selection method
Aluminum foil tape has strong resistance to high temperature, anti-aging and heat preservation, and is often used in the packaging of hot and cold air pipes in industrial cold and warm air process fields. Let me talk about the reasons why the aluminum foil tape is not sticky and how to choose it. I hope it will help everyone.
Aluminum foil tape is not sticky
In fact, aluminum foil tape is not viscous, only the thickness of the glue, the higher the thickness, the better the viscosity, and the butyl ester content in the glue also affects the viscosity, at least 54%. Initial tack, sticky, 180° peel strength. The general aluminum foil tape is mainly made of bopp film and water-based pressure-sensitive adhesive. Generally, the thickness is 50UM. The viscosity is very good, and the viscosity below 50U is poor. The material is poor, or it is not suitable for sticking your material, or it may be that your material is difficult to bond.
There are at least two reasons why aluminum foil tape is not sticky:
First, the aluminum foil tape is thin, and at least 47U thickness is relatively sticky.
Second, the water-based pressure sensitive adhesive has a low content of butyl butter
Aluminum foil tape selection method
1. Take the aluminum foil tape and tear off a piece of rubber layer of the aluminum foil tape for inspection. If the rubber layer of the aluminum foil tape is more uniform, the adhesiveness is also strong, that is, the quality is better.
2. first look at the appearance of aluminum foil tape, generally can be seen from the appearance, the appearance of good quality aluminum foil tape neat, no damage, and there is no gap between the layers of aluminum foil tape.
3. You can also feel the softness of the aluminum foil tape by hand. If you think that the foil tape is too hard, it is not good for construction. If it is too soft, the tensile strength is not enough, it is best to be moderate.
4. aluminum foil tape can withstand high temperatures, not afraid of fire, good flame retardancy, burning is not bad, burning under long fire, aluminum foil tape surface will leave carbon black, carbon black gently wiped out, revealing the original color of aluminum foil.
The above is about the reason why the aluminum foil tape is not sticky and the selection method. I hope everyone can understand the reason why the aluminum foil tape is not sticky and the selection method is helpful to everyone.
