MUD stain on Cast Resin Sculpture!

This Resin Cast Sculpture was rescued after the most recent Santa Barbara Wild Fire from a burned home.  It had been standing in water & dirt for a period of time and was a little scorched, but very encrusted and stained with mud!  We cleaned it with water and a gentle detergent and it looked much better. The corrosion from the mud had penetrated the resin and was very difficult to remove.  The stubborn corrosion finally came off with a very gentle, non-abrasive rubbing.  With a soft wooden skewer you can actually scrape without scratching the surface.  With a gentle hand, you can actually tell the amount of pressure you can apply without damaging, scraping or scratching the surface! There is still a slight discoloration from the heat as you can see, but there is no longer corroded mud on this piece.  It cleaned up nicely. Something you can do at home on your own!