Tree limb and other scratches on AS

I have acquired several scratches from various tree limbs and other objects during the past 5 years with my AS. They are not deep scratches, but some of them are long and obvious. I've tried buffing them with a buffer, it seems to do no good. I wash my AS after each excursion, short or long, and they just seem to stay. Does anyone know what I could do to make these scratches disappear or at least diminish? Please let me know. Like I said they are not deep but I seem to notice them more and more. Thanks.



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