A product of extensive research, EVAPO-RUST® rust remover is an environmentally-safe water-based product that removes rust in minutes, without scrubbing. It's so easy to use, anyone can restore their rusted tools, auto parts, even firearms to like-new condition. One gallon de-rusts up to 300 lbs. of steel.
- Removes even heavy rust completely
- Non-toxic, non-corrosive, safe on skin
- No fumes or bad odors, non-flammable, no VOC's
- Biodegradable, water soluble
- Requires no special equipment
- Will not harm unrusted steel, safe on other metals
- Will not affect plastic, PVC, Viton and most paints
In a container, pour a sufficient amount of EVAPO-RUST® to completely cover the rusted object.
Immerse the rusty object in the solution and leave it for 10 minutes for light rust or up to overnight for extremely heavy rust.
When finished, rinse item with water. If deep rust remains in pits, re-immerse item until all the rust is gone. Un-rusted metal will not be affected. NOTE: This stage is VERY important in getting the best results
To prevent flash rusting, dip the item back into solution. Then allow item to air dry. This will prevent rust for up to two weeks.
The product can be re-used until its effectiveness starts to wear off. In general, one gallon of Evapo-Rust® will remove 1/2 pound of pure dry rust, which equates to approximately 300 pounds of moderately rusted steel. Since rust is 1/17th the weight of iron, the workload is quite substantial.
In terms of a degradation curve, Evapo-Rust® has a specific gravity of 1.042 when the solution is fresh. After repeated uses, the solution will darken and start to lose its effectiveness. Once the solution reaches a specific gravity of 1.08, the solution will no longer be effective and should be replaced.
Since Evapo-Rust® is a highly effective rust remover, it stimulates the carbon migration process. Evapo-Rust®is not alone in creating the carbon migration effect. Other rust removal treatments will also result in carbon migration and a darkening of the metal. The primary difference between Evapo-Rust® and the acid based treatments is that Evapo-Rust® will not harm or weaken the metal. Unlike other treatments, Evapo-Rust® will not darken products made with low carbon steel.
With Evapo-Rust®, sometimes a wiping with a dry cloth or a more rigorous buffing can remove the dark coloring. A quick rinsing of the metal after Evapo-Rust® has been applied may also keep the carbon from settling into the pores of the metal.
There are several things that can be tried to minimize the effects of carbon migration. First, high carbon parts should not be soaked longer than necessary. Once the rust has been removed, the parts should be rinsed and dried. Second, a further dilution of the Evapo-Rust® formula may have a positive affect. The lower concentration of Evapo-Rust® will take longer to remove the rust, but may have less of an effect on causing the carbon migration.