Although we do not recommend a specific brand, many of our employees have been happy with Meguiar’s # 7 Show car glaze for polishing surface scratches. If you have deeper scratches then you may need to take your guitar into a technician to be buffed / sanded / then re-glossed. If you have a satin or semi gloss guitar, please do not use polish. When a polish is used on the satin it changes the appearance permanently creating gloss spots, the proper way to take care of this finish is simply to use a moist rag.
Wipe down your guitar with a soft cloth after use, and polish it every month or so. Using a very soft cloth and guitar or guitar polish will ensure your instrument maintains its natural oils. Cleaning removes sweat and dust, both of which work to corrode your instrument’s polish and wood and increase the likelihood that your guitar will dry out. Use products that are designed for the specific parts and materials of your guitar. Note: Make sure you use non-corrosive materials for your guitar cleaning! Never use rough cloths or household cleaners.
Keep your guitar in its case when it’s not in use. Never store your guitar by a fireplace, heater, oven, radiator, in a car, or in direct sunlight. These will dry-out and prematurely age your guitar.