Barrel Safe is a low foam liquid acidic detergent designed to remove concrete from metal surfaces. It is suitable for cleaning concrete trucks and concrete equipment. it also remove rust and hard water scale from a verity of metal surfaces. Barrel Safe contains inhibitors to reduce acid attack on iron and steel.
Directions: Dilute 1 part of with 5 to 10 parts of water and apply to the concrete. Leave for 5 to 10 minutes and hose off with water