While it's important to use lubrication when clay barring a car, the car should not be soaking wet from washing when you start the claying process. Here’s a detailed guide on the best practice for claying your car:

Why Not Clay Bar a Wet Car?

1. Dilution of Lubricant: If the car is wet from washing, the water can dilute the clay lubricant, making it less effective. Proper lubrication is crucial to prevent marring or scratching the paint.
2. Inefficient Process: Excess water can make it harder to gauge how much lubricant is actually being applied and can cause the clay bar to slip around too much without effectively picking up contaminants.

Best Practice for Claying Your Car

1. Wash and Dry the Car

   • Thoroughly wash your car to remove loose dirt and debris. This helps prevent scratching during the claying process.
   • Dry the car completely using clean microfiber towels. This ensures that when you apply the clay lubricant, it won't be diluted by excess water.

2. Prepare the Clay Bar

   • Cut the clay bar into smaller pieces. This ensures you have backup pieces if you drop one.
   • Knead the clay piece in your hands until it becomes soft and pliable.

3. Lubricate the Surface

   • Work on a small section of the car at a time (about 2' x 2').
   • Spray a generous amount of clay lubricant onto the section you are working on. Ensure the area is well-lubricated to prevent marring.

4. Use the Clay Bar

   • Gently glide the clay bar over the lubricated section using straight-line motions (back and forth or up and down).
   • Do not use circular motions.
   • You will feel the clay bar picking up contaminants; it will glide more smoothly as the surface becomes clean.
   • Check the clay bar frequently for contaminants and knead it to expose a clean surface.

5. Wipe Off Residue

   • After claying each section, wipe it down with a clean microfiber towel to remove any residual lubricant and contaminants.

6. Repeat the Process

   • Continue the process, section by section, until the entire car has been clayed.
   • Ensure each section is well-lubricated before claying to avoid scratches.

Conclusion

To achieve the best results and avoid potential damage to your vehicle's paint, it's essential to start with a dry car and use plenty of clay lubricant during the claying process. By following these best practices, you can ensure a smooth, contaminant-free paint surface ready for further detailing steps like polishing and waxing.