Yes, using a clay bar or clay towel will remove old wax and sealants from the surface of your vehicle.

The primary purpose of claying is to remove bonded contaminants from the paint, such as tar, tree sap, and industrial fallout, but in the process, it also strips away any existing layers of wax or sealant.

Steps to Reapply Wax or Sealant After Claying

1. Wash and Dry the Car: After claying, wash your car again to remove any residue from the clay lubricant or soap. Dry the car thoroughly with a clean microfiber towel.

2. Inspect the Paint: Check the surface for any remaining contaminants or imperfections. Claying should leave the paint smooth and free of bonded particles.

3. Polish (if necessary): If you notice any minor scratches or swirl marks, you might consider polishing the paint to restore its shine and smoothness before applying wax or sealant.

4. Apply Wax or Sealant: Choose a high-quality wax or paint sealant to protect the freshly cleaned paint. Follow the product instructions for application. Generally, you will apply the product in a thin, even layer, let it haze, and then buff it off with a clean microfiber towel.

5. Buff and Inspect: After the wax or sealant has been applied and buffed off, inspect the paint for an even, glossy finish. Ensure there are no missed spots or excess product left on the surface.

By following these steps, you can ensure that your vehicle's paint is well-protected and maintains a high level of shine and smoothness after claying.