Rust Kutter. W e spent three days testing six of the top rust removers on the market on a variety of rusted tools, household objects and doors to determine which was superior. Rust Kutter Rust Converter. is rated 5.0 out of 5 by 1. Stops costly rust and corrosion. Eliminates rust and primes metal to prevent rust from forming again. Coming in a convenient spray bottle, this rust converter from Rust Kutter couldn’t be easier to apply. Check Latest Price. The coating remains on the frame and keeps moisture from getting to the iron. Once more, some prep should be performed to rust areas that are scaled or loose. This product turns the rust into an airtight phosphate coating. I got this product to use as an etching and primer for a trailer that I was going to build. Active ingredient: Phosphoric acid (H 3 PO 4) Appearance: Pale yellow liquid, acidic odor, greyish-white finish Rust Kutter is simply the most effective way to convert rust into a stable, ready to paint surface. Rated 5 out of 5 by 13590753 from Great Product! Ultimately, we selected Iron Out – Stain Remover as the best rust remover. "Rust Kutter" changes the surface into a rust-free coating. Ready to use, comes with sprayer. Rust Kutter, 32 oz. Make sure this fits by entering your model number. With a final two coats of 'finish paint', I have had ungalvanized boat trailers remain rust-free, for more than ten years - with fairly regular submersion in salt water. A wire brush can be used to complete this task with little effort. "Rustoleum" zinc spray primes the surface as if it were galvanized. Then, shake the bottle and spray on the Rust Kutter. The strong formulation comes in a quart sprayer bottle but is also available by the gallon if you have a lot of rust to convert. Rust Kutter: Item Form: Spray: Surface Recommendation: Tile, Stone: About this item This fits your . As with Black Star’s model, it can be used to spray at rust from any angle. Rust Converter Spray: One Step® Primer Sealer comes in a can as well. First, scrape loose paint and large pieces of the rust off of the surface with a wire brush. Unlike the last products, which you had to apply with a brush or roller, the Rust Kutter comes in a spray bottle, which ceases application without inhibiting the effectiveness of the product.