1. Clean the dent with a clean damp cloth;
2. Load the glue stick into the glue gun, pull the trigger to let the glue stick enter the glue gun, and turn on the power to preheat for 5 minutes; 3. Use a suitable pull-out gasket. Large dents require large pull shims. (Note: The larger the drawing gasket, the greater the pulling force);
4. Pull the trigger and apply extrusion glue on the stretch gasket (the 4 holes of the gasket should be coated with hot melt glue);
5. Quickly place the brushed gasket coated with hot melt glue in the center of the dent and press lightly until the glue solidifies and bonds (let the glue cool for about 8 minutes. The cooling time should be less than 10 minutes and should be slightly shortened in winter);
6. Align the T-shaped patcher and press the stretch gasket with hot melt glue, and pull the sliding rod backward to lift the dent;
7. Check with the circuit board. If the dent remains, tap lightly with a flat hammer or pen;
8. Clean the repaired area with a clean damp cloth. It's that simple.