The release film needs surface treatment before bonding to ensure the stability and reliability of the bonding effect. It is necessary to clean the surface first, remove all dirt and oil, and wipe it clean with alcohol or other cleaning agent. Next, the surface needs to be polished with sandpaper or other abrasive to increase the roughness of the surface and improve the adhesion of the adhesive.

The adhesive of the release film can be selected according to different application scenarios. Generally speaking, the commonly used release film adhesives are epoxy resin, acrylic acid, silane and so on. The curing time, viscosity and adhesion properties corresponding to different adhesives are also different, and need to be selected according to actual needs.

The bonding process of release film is usually divided into the following steps:
1. Evenly apply the adhesive to the surface of the release film;
2. Apply the adhesive to the material to be bonded;
3. Press the two surfaces together to ensure a complete fit;
4. After the bonding is completed, place it for a period of time to let the adhesive cure and form.

Common problems and solutions:
1. Warping or cracking occurs after the release film bonding: it may be that the surface of the release film is not cleaned or the selected adhesive is not suitable for the release film material, and the surface treatment can be re-done or the appropriate adhesive can be replaced;
2. Bubbles appear after the release film bonding: it may be that the adhesive is not evenly applied or the two surfaces are not fully contacted when bonding, and the bubble can be pressed or extruded by roller during bonding;
3. The curing time of the adhesive is too long or too short: it is necessary to choose the right adhesive to ensure the stability and reliability of the bonding time.

In short, when selecting the release film adhesive, it is necessary to consider the specific application scenario and material characteristics, and carry out reasonable surface treatment and process operation to ensure the bonding effect and reliability of the release film.