Questions and Answers for Krud Kutter 32 oz. Metal Clean and Etch

A:  Happy to help! After using Rust-Oleum Krud Kutter Metal Clean and Etch on your metal, the surface must be rinsed and then wiped dry prior to panting. Te surface does not need to be cleaned again, however you will want to paint the treated surfaces within 48 hours to prevent formation of new rust. - Rust-Oleum Product Support 3

A:  Thank you for reaching out! Rust-Oleum Krud Kutter Metal Clean and Etch is intended for use on bare metal surfaces. It will etch bare metal and dissolve lighter rust on the surface. This product is not designed for use on painted metal. While this product contains phosphoric acid, we do not recommend using it as a paint stripper. - Rust-Oleum Product Support 3

A:  Thanks for reaching out. Rust-Oleum Krud Kutter Metal Clean & Etch will clean and etch metal surfaces, including galvanized metal, in one operation in preparation for painting. This product contains phosphoric acid, it will etch the galvanized metal, it should not be used as a stain remover. - Rust-Oleum Product Support 6

A:  Happy to clear things up, John! Since Rust-Oleum Krud Kutter Metal Clean and Etch contains phosphoric acid, it should only be used on bare or rusted metal surface. This product may damage painted surfaces and plastic. - Rust-Oleum Product Support 3

A:  Glad to lend a hand. Rust-Oleum Krud Kutter Metal Clean & Etch is not designed for use to remove the galvanized coating and is best as part of pre-paint prep. We need to know more about your application to make the best recommendation for you. Please feel free to call us at 800-350-1901 to discuss further. - Rust-Oleum Product Support 5

A:  Good questions Cory! Rust-Oleum Krud Kutter Metal Clean & Etch is specially formulated to prepare iron, steel, zinc, aluminum and galvanized surfaces for painting. Since the steel you purchased is new and oil covered, not rusted, there may be better options for prepping the steel. Give us a call at 800-466-7126 and one of our Product Support Technicians can learn more about your project so we can recommend the best solution. - Rust-Oleum Product Support 6

A:  Product is ideal for cleaning oily protective coating and prepping the steel for painting as you've described. You need to do an internet search of "rust oleum Krud cutter sds" - I know the spellings look funny, but they will get you to this item's (Material) Safety Data Sheet. Pay close attention to warnings about personal protective gear (especially splash resistant eye goggles). This is an outside job, and you will need to contain the run-off in a product such as "oil dry" or "safety step" absorbent material (similar to kitty litter). Should be available in a 40 or 50 lb. bag at auto parts stores (double check, but I don't think Home Depot can help you out on that product). Don't let run-off get in sanitary sewer system (i.e. street drains). Once liquid is in the absorbent material, scoop it up into a heavy lawn trash bag, put that in cardboard boxes with paper wipe down towels and dispose of it. If your city/county has a hazardous waste collection facility, you might check with them to ensure you're following local best practices for safe disposal of the waste products. I would not soak the steel tubing - spray it on, wipe it off and rinse with water - you'll want to catch the runoff as I previously described. Good luck with your project.

A:  Per the Safety Data Sheet for this product, the >99% component is listed as "Proprietary", with corresponding Chemical Abstract Number also shown as "Proprietary". Your only safe assumption is that major component of this product acts an irritant which requires appropriate personal protective equipment for eyes, skin, and respiratory (despite advertising of "no harmful vapors). Take adequate precautions and be safe - look up the (Material) Safety Data Sheet online and familiarize yourself with product information before using this product.

A:  Great question, Coco! For more information on the composition of Rust-Oleum Krud Kutter Metal Clean & Etch, you can refer to the Safety Data Sheet (SDS). https://images.homedepot-static.com/catalog/pdfImages/4b/4b1657a4-7be1-45e2-aeb5-9dc3c0588af8.pdf - Rust-Oleum Product Support 5

A:  The active ingredient is Phosphoric acid, <25%, technical grade.

A:  I would not recommend this solution for use on an interior brass fireplace surround prep. Although you don't say that you intend to paint the surround, I suspect that is the case. Instead of this product, get some fine sandpaper (or medium grade steel-wool) to very lightly scuff the brass surface, and then wash off any remaining dust, dirt, or grease with Dawn dish-washing detergent. Completely dry the brass, and finish your prep with Rustoleum metal priming spray paint. Your final coat of paint will finish your job nicely. Good luck on your project!

A:  Good question! Rust-Oleum Krud Kutter Metal Clean & Etch is specially formulated to prepare iron, steel, zinc, aluminum and galvanized surfaces for painting. It removes rust, oil, grease and dirt. For clean brass we would recommend scuff sanding the surface prior to painting. - Rust-Oleum Product Support 6