Description Extreme Simple Green® cleaner cuts through tough, built up grease, oil, dirt, pollution, insect residue and impact soils. Wont harm aircraft structural metals, plastics, paints or coatings. Extreme Simple Green®s speed of grease cutting and its high capacity to hold grease, oil and soils in solution during cleaning and rinsing time are the keys to performance that equals fast cleaning and no re-deposition. Nontoxic, biodegradable. SMP 13412 packaging contains 25% post-consumer content.