My car has a deep scratch mark on the bonnet for almost a year. Recently, the unsightly mark seemed to become more obvious as it darkens in color and makes a stark difference against the white paintwork. I believed it is due to dirt accumulating in the cavity, just like how food remains get trapped in our tooth cavity.

Since it was Christmas day and I was idling at home, I decide to do a little experiment with a bottle of liquid clay bar that I bought some time ago. The liquid clay bar is supposed to be a deep cleanser that removes embedded dirt. It has a 3 layer system that contains a stain remover, wash and special clay compound according to the label on the bottle.

After giving the content in the bottle a good shake, I poured a small amount of the mixture onto the sponge and gently rubbed over the scratch mark. To my pleasant surprise, the scratch mark lightens up in shade. I proceed to wash away the mixture on the paintwork with clean water. After drying up the surface with a cloth, I applied a layer of wax to protect the surface as the clay compound will strip the any sealant that was applied before.

Below is the outcome after a 10 minutes