Using metallic color decorative PVC film correctly involves careful application and adherence to proper techniques. Here's a step-by-step guide on how to use it effectively:

1. Surface Preparation: Ensure that the surface you plan to apply the metallic color decorative PVC film to is clean, smooth, and free from dust, dirt, grease, or any other contaminants. Thoroughly clean the surface and allow it to dry completely before proceeding.

2. Measure and Cut: Measure the dimensions of the area you want to cover with the PVC film. Use a sharp utility knife or scissors to cut the film to the appropriate size and shape. Leave some extra allowance around the edges for easier application.

3. Peel Off Backing: Carefully peel off the backing paper from the adhesive side of the PVC film, revealing the sticky surface that will be applied to the target surface.

4. Align and Position: Position the film over the target area, ensuring that it is aligned correctly. Start applying the film from one edge and gradually work your way across the surface, smoothing out any wrinkles or air bubbles as you go.

5. Smooth Application: As you apply the PVC film, use a squeegee or a soft, clean cloth to smooth out the film and remove any air bubbles or wrinkles. Work from the center towards the edges to push out any trapped air.

6. Trim Excess Film: Once the film is fully applied and smooth, trim off any excess film around the edges using a sharp knife or scissors. Take care not to damage the surface or the film during this step.

7. Edges and Corners: Pay special attention to the edges and corners to ensure they are securely adhered. Use the squeegee or cloth to press the film firmly into place along the edges.

8. Allow to Set: Let the applied metallic color decorative PVC film set and adhere to the surface for the recommended time specified by the manufacturer. This will ensure a strong and long-lasting bond.

9. Avoid Water and Moisture: While many PVC films are water-resistant, it's best to avoid exposing the film to excessive water or moisture during the initial bonding period. Allow it to set and cure fully before subjecting it to such conditions.

10. Maintenance: Clean the applied PVC film with a mild detergent and a soft cloth as needed. Avoid using harsh chemicals or abrasive materials that could damage the film's surface.

11. Removal (if needed): If you ever need to remove the PVC film, gently peel it off from the surface. Use a heat gun or hairdryer to soften the adhesive if the film is firmly bonded.