1. Hot Water Soaking Method:
Immerse the deformed area in hot water (around 70℃) for 3-5 minutes. Once the plastic softens, gently reshape it by hand, then lay it flat to cool naturally. Note: Do not exceed 80℃ to avoid material aging.
2. Hair Dryer Heating Method:
Use a hair dryer on medium heat, holding it about 20cm away from the can to heat it evenly while gently reshaping it by hand. Immediately rinse with cold water after heating to set the shape. Suitable for small, localized deformities.
3. Weight Flattening Method:
Cover the deformed area with a towel and place a flat, heavy object (such as a book) on top for at least 12 hours. If the edges are warped, secure them with clips before pressing.
4. Freezing and Shaping Method:
Soak the can and freeze it for 2 hours, using the principle of water expanding when it freezes to correct the deformation. Remove, thaw, and dry. Repeating several times will yield better results.
Note: Before freezing, ensure the can is not cracked to avoid brittleness.
V. Filling Repair Method
If the deformation is severe, clean it thoroughly, fill it with plastic filler, let it dry, sand it smooth, and finally paint it.
VI. Mold Repair Method
For regularly shaped deformations, a mold can be made, the can placed inside, and pressure applied to restore its original shape.
Remember to wear gloves and safety goggles during this operation, and perform the procedure in a well-ventilated area. If the deformation is severe or the can is cracked, it is recommended to replace it with a new one; do not continue using it.
