Butyl glue does not stick to aluminum frames can be caused by a variety of factors. Here are some possible causes and solutions:
1. Improper surface treatment of aluminum frame: The surface of aluminum frame needs to be polished, degreased, cleaned and other treatments to increase its adhesion to butyl rubber. If the surface treatment of the aluminum frame is improper, it will lead to insufficient adhesion, resulting in the butyl glue being unable to stick to the aluminum frame. The solution is to ensure that the surface treatment of the aluminum frame is clean, and the necessary sanding and cleaning are carried out.
2. Butyl glue brushing problem: butyl glue needs to be evenly brushed, and there can be no bubbles or gaps. If the application is uneven or bubbles, the butyl adhesive will not be able to adhere to the aluminum frame. The solution is to take care to avoid air bubbles when applying and to ensure that the application is evenly applied.
3. Butyl glue is expired or the quality is not up to standard: Butyl glue may be expired or the quality is not up to standard, which will lead to a decrease in its adhesion. The solution is to use *** butyl glue and make sure to use it within the expiration date.
4. Insufficient bonding temperature: butyl glue needs to be bonded at a certain temperature, if the temperature is not enough, it will lead to insufficient adhesion. The solution is to ensure that the bonding is done at the right temperature.
5. Deformation of aluminum frame: The aluminum frame may be deformed during processing or transportation, resulting in a decrease in its contact area with butyl glue and a decrease in adhesion. The solution is to ensure the flatness and dimensional accuracy of the aluminum frame, and to avoid deformation during processing and transportation.
In order to ensure that butyl adhesive can stick to the aluminum frame, it is necessary to pay attention to the surface treatment of the aluminum frame, the coating of butyl adhesive, the quality of glue, the bonding temperature and the deformation of the aluminum frame.