I hesitate to give the same suggestion I did some months ago since one of the replies was "I wouldn't use anything on my chips that I use on my car" but here goes anyway.

I've been using ArmorAll Multi-Pirpose Cleaning with fantastic results for the past year, no damage to chip, luster and shine are still there...and it cleans the chip. Don't use any other Armorall product ie, tire cleaner, window, bug, etc.