First, you’ll want to note the drying time. While it is usually recommended to let the converter dry for 24 to 48 hours, some rust converters only require a few hours before you can apply a metal primer or topcoat to the area. Next, consider the ingredients and flammability.
Some rust converters are eco-friendly and non-toxic while others use phosphoric acid. Depending on the ingredients and flammability, you will want to take extra precautions throughout the prep, application, and clean-up. Some rust converters will have added protection and additional metal primer in the formula. Depending on your project, you may or may not want those additions. This includes the items required to apply the converter and the size of the affected area.Īlong with these factors, you’ll want to consider the ease of application. With that being said, pay attention to the amount of rust converter you purchase. Practice Preventative Measures To Avoid Rust You will want to have enough product to cover the entire corroded area.