premiumpowerwash

Hey, Mark Topper from Premium Power Wash. Located in Canada about 5 minutes from the Washington border crossing. I am wondering what would be the best chem to use to clean painted tin walls on chicken barns. They are covered and baked on by the sun with dust, algae, mold mildew. Is there an acid that is safe on tin / painted tin that could literally melt away this caked and baked grime? Or anything that could loosen it and soften it greatly to allow very easy rinsing to remove ?

Thanks a bunch.. Appreciate the response going to play around with those ideas. Thanks.