Citrus Cleaner is based on citrus oil. The product effectively removes glue residue, resin, tar, grease, wax, oil, printing ink, marker pen stains, etc. Citrus Cleaner is ideal for dissolving and removing labels and stickers. It is effective on all surfaces. Citrus Cleaner does not corrode but can remove the gloss from certain types of paint. Citrus Cleaner is pH neutral.