Yes, you can wax your car straight after using a clay bar, but it's important to follow a few guidelines to ensure the best results.

1. Apply Wax or Sealant: After using a clay bar, it's essential to apply a wax or sealant. The clay bar removes old waxes and sealants, which means your paint is left unprotected. Applying a fresh layer of wax or sealant will help protect the paint from contaminants and UV rays.

2. Clean Residue: Before applying wax, make sure to clean off any clay bar lubricant residue. This step is crucial to ensure that the wax adheres properly to the paint surface.

3. Consider Polishing: While not always necessary, some detailers recommend polishing the paint after claying, especially if the clay bar has introduced any marring. If you choose to polish, do so before applying wax.

4. Use the Right Wax: If you decide not to polish, consider using a "cleaner wax" that contains mild abrasives to help minimize any imperfections left by the clay bar.

Visual References

Here are some images related to the clay bar process and waxing: