4008 Restorer - A water-based, biodegradable cleaner used for soaking airbrush and spray-gun parts after painting Partially dissolves dried paint allowing for easy clean-up with soap & water. Use as a soak for metallic parts: nozzle, needle, cup. Re-Usable. Keep in metal or ceramic container. Dissolves soft-plastics. Keep away from non-PTFE coated O-rings. Flush airbrush or spray-gun with water after using Restorer.