Autosel 2-in-1 Rust Converter & Metal Primer, Black, 70.5 oz

The 70.5-fluid-ounce container holds a water-based, black rust converter and metal primer for indoor and outdoor projects. Its 2-in-1 formula is designed to convert existing rust and create a paintable surface while helping seal metal from air and moisture.

Use it on metal surfaces in automotive, marine, or industrial settings where rust treatment and a primer coat are both part of the job. The matte black finish gives treated areas a consistent, low-sheen appearance.

The formula is intended for direct application to rusty metal by brush or spray. With heat, UV, and water resistance among its stated features, it can serve on metal exposed to outdoor conditions as well as in indoor work areas.

Everyday use

For a project such as treating a rusty trailer component or metal frame, stir the liquid well, then apply two to three thin coats. The product is designed to work directly on rusty metal without sanding or a separate primer, combining rust conversion and priming in one coating step. That makes it a practical alternative to buying and applying a rust treatment and primer separately when both are needed for the job.

It dries to the touch in two to four hours and fully cures within 24 hours. The manufacturer advises using the product within 72 hours after opening for best rust-prevention results. Water cleanup is a convenient fit for brush application, and the water-based formula is also described as low-odor and under 1% VOC.

Strengths

The main advantage is the combined role: the coating is intended to convert existing rust into a paintable surface while functioning as a metal primer. Its black matte finish is useful when a subdued appearance suits the project, and its stated resistance to heat up to 350°F, UV exposure, water, and chemical corrosion supports use on metal parts in demanding settings. The product is described for automotive, marine, and industrial applications, including frames, trailers, and tools.

Customer feedback highlights easy brush application, smooth coverage, and a flat black finish. Comments on rust resistance are mixed: some buyers report effective protection, while others mention rust returning or streaks. These experiences make careful application according to the coat and curing directions especially relevant to getting a consistent result.

Key takeaways

This is a liquid acrylic coating that combines rust converter and metal primer in one black, matte formula. The 70.5-fluid-ounce size is suited to projects that call for more than a small touch-up, while the brush-or-spray application supports different ways of working across metal surfaces. Its indoor and outdoor use, water resistance, and stated heat and UV resistance make it applicable to a range of automotive, marine, and industrial metalwork.

Rather than treating rust and priming in separate stages with separate products, this coating brings those functions together. Stir before use, apply two to three thin coats, and allow the stated drying and curing times before putting the surface back into service.

Should you buy it?

It makes sense if your project involves rusty metal and you want a black primer coating that also serves as a rust converter. The direct-to-metal application and combined treatment-and-primer role are its clearest practical advantages, while the matte finish suits frames, trailers, and other metal surfaces where black is appropriate. For automotive, marine, or industrial maintenance, it offers a straightforward way to handle rust treatment and priming as part of the same coating process.