the varnish and reach the colored layer. They require more work, but they can also be reduced.
Deep: they reach the primer or even the metal. In these cases, it is advisable to go to a professional.
To know if a scratch is superficial, simply run your nail over it: if it does not stick, it is a slight mark that can be corrected with the polishing foam method.
Materials needed
One of the great advantages of this technique is that it does not require expensive tools or advanced knowledge.
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