Wash Safe Canada

Rust Stopper – Rust Primer and Converter

Rust Stopper Product Image Wash Safe Canada Green Cleaning Products

Rust Stopper is a unique liquid that has the ability to chemically convert rust to a hard metal surface that is ready to be painted overnight.

Rust Stopper is really two products in one, it’s a rust “converter” and a rust “primer” so it can be used to stop the spread of rust or be used as a preparation primer before you paint.

Rust Stopper is widely used by painters in many industries, home painting, automobile and boat restorations and maintenance men everywhere. Business owners who own equipment use this product as a protective agent to stop the spread of rust as they see it on their equipment, vehicles, etc.

Ruster Stopper Before and After 2Rust Stopper Before and After - Wash Safe Canada Green Cleaning Products

Before and After Applying Rust Stopper

If you have rust “stains” that you are trying to clean, this is not the product for that, we make another product called “Rust Off” that removes rust stains.

32 oz Spray Bottle

Rust Stopper


(plus shipping)


No credit card required.


If for any reason you are unhappy with your results and you feel that a refund is warranted, simply return the product and the receipt and we will refund your money, no questions asked. This way you can order with confidence. We want you to be happy and to have a pleasant, stress free shopping experience. Our products work and work well…all you have to do is give them a try!

Attention Contractors:There are no refunds on contractor-size products. We have never had a contractor ask for a refund but if you are a new contractor, we suggest ordering our smaller size products first to get used to using them before ordering our contractor-sized products.
  • How To Use
  • FAQ


Converts rust into iron phosphate overnight. Allows refinishing of even the most rusted surfaces.


Contains: Phosphoric acid

VOC: Zero grams per quart


KEEP OUT OF REACH OF CHILDREN. If taken internally give large quantities of water. Call physician. Avoid contact with eyes wear safety googles In case of contact, flush with water. Prolonged exposure to skin may cause irritation – wear rubber gloves


200 sq ft per quart/ 800 sq ft per gallon


Please note that mixing instructions are measured in U.S. gallons, so feel free to add more of the powder to your mix.


With a wire brush remove any loose rust or surface debris. Use a degreaser to remove any oils or greases. With a paint brush or sponge brush apply a coat of Rust PC and let dry overnight, wipe of any white powder that develops before painting, repeat process if rust is extra heavy. Use to stop rust bleeding thru to painted surfaces. On finished areas not being painted limit use of Rust PC to the rusted area. If product exceeds rusted area wipe with a wet cloth. Do not use below 35 degrees.


Please note that mixing instructions are measured in U.S. gallons, so feel free to add more of the powder to your mix.

You’ll find answers to most frequently asked questions below, as well as a handy measurement converter tool. If these resources don’t answer your question(s), feel free to contact us by clicking the green button below:

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UnitConversion.org – online unit converter of length, weight, volume, area, and more.