This fast acting cleaner penetrates and loosens powder fouling, carbon build-up, gas residue, heavy grease & oil, petroleum residue, accumulated solvent & lubricant residue. It penetrates and lifts heavy deposits. Spray or soak item to be cleaned, brush or wipe with a rag, then rinse with clean water. May be used in an ultrasonic cleaning machine. This non-petroleum cleaner is biodegradable, has a high flash point, and is low VOC. This Bio-Based product is made from natural plant extracts. While keeping the environment healthy it also reduces our dependence on foreign resources. USDA Certified Bio-based content is 61%. Safe for the environment, Safe for you.