BLACK STAR MRO Chem Rust Converter - Converts Rust on Any Steel Surface - 1 Gallon

Black Star Rust Converter is a water-based product that converts rust into an inert black polymer resin that can be used as a primer for painting. It can be applied by spraying, brushing, rolling, or rubbing with a rag or paint sponge. It is important to note that it should be applied in a temperature range of 50 to 100 degrees F, and overspray that does not come into contact with rust will dry to a waxy film that should be washed off before top coating. It is also noted that it should not be applied in direct sunlight or damp conditions. In terms of customer experience, reviewers have generally had a positive experience with the product, reporting that it works well and is easy to apply. They have used it on various surfaces, from rusted truck frames and leaf springs to a 60 Galaxie restoration, and found that it converts rust into a black, paintable surface. However, some reviewers noted that it only works on lightly rusted metals and needs to be applied to the entire surface for consistent results. Some reviewers found the product expensive but concluded that it was worth the price for its effectiveness. Others found that even though it was easy to apply, it required the use of a mask, chemical gloves, and protective shields due to its strong chemical composition. Some reviewers also mentioned that it cannot be painted over, but it works well as a primer for oil-based top coats. Overall, Black Star Rust Converter appears to be a reliable product that effectively converts rust into a primable surface. However, some caution must be taken when applying the product, such as in wearing protective gear and applying it to the entire rusted surface.