Ultra Wash is a truck wash with power. If you like Brown Derby you will love Ultra Wash with twice the caustic power. It was made for heavy duty cleaning of very dirty over the road tractors and trailers to remove magnetic road film and carbon stack stain even with long times between cleanings and still be a no brush product. Will also clean heavy duty construction or farm equipment. Great for cleaning the inside and outside of livestock haulers like hog and cattle trucks that are made of stainless steel or flat mat aluminum. Do Not use on highly polished aluminum finishes unless two stepping at higher dilutions or using an aluminum brightener afterwards as this high pH product may cause streaking on highly polished aluminum surfaces. Contains Sodium Hydroxide. Ships with a hazmat fee via Fed Ex ground.