Polishing backing plates are accessories that are attached to rotary or dual-action polishers. They are used to polish away swirls, scratches, water spots, and to apply waxes, sealants, and glazes effectively. These backing plates come in various sizes, colors, and types to suit different machine types and polishing needs.

Generally, polishing backing plates can be made from various materials, including Polyurethane (PU) which is a soft and flexible material. Polyurethane backing plates are popular for their flexibility, durability, and effectiveness in distributing pressure evenly during the polishing process. They can help reduce vibrations and provide a smoother polishing experience.

To use a polishing pad effectively, you usually follow these steps:

1. Choose the right pad: Select a polishing pad based on the level of correction needed for the surface you are working on. Different colors or foam types indicate different levels of aggressiveness.

2. Apply polish: Apply a small amount of polish to the pad. You can spread it around the pad evenly.

3. Prime the pad: Before you start polishing, prime the pad by working the polish into it. This helps distribute the polish and ensures an even application.

4. Start polishing: Turn on your polishing machine and gently press the pad against the surface you are polishing. Move the pad in a back-and-forth or circular motion, ensuring even coverage.

5. Keep the pad flat: Maintain a flat pad position to avoid causing swirl marks or uneven polishing.

6. Work in sections: Divide the surface you are polishing into sections and work on one section at a time for thorough polishing.

7. Clean the pad: Periodically clean the pad to remove excess polish buildup and keep it effective throughout the polishing process.

8. Check the results: After each section, inspect the results to see if further polishing is needed or if the desired finish has been achieved.

Following these steps can help you effectively use a polishing pad to achieve the desired results in your polishing projects.