Citrus cleaner is safe to use on all exterior surfaces and is fully biodegradable.
 
NEAT FOR HEAVILY SOILED SURFACES
10:1 MEDIUM
20:1 LIGHT
 
Application;
Simply spray citrus onto the affected area and allow to soak for several minutes, then jet wash off using a pressure washer.
DO NOT LET IT DRY 
DO NOT USE INDIRECT SUNLIGHT