BENZ Packaging RR 125 A is a liquid phosphoric acid based cleaner designed to simultaneously clean and remove rust from steel and iron parts. Also effective in removing flux, heat scale, and other oxides from steel, stainless steel, brass, copper, and aluminum and hand wipe applications.

RR 125 A has a unique property of dissolving iron oxide quickly while etching iron very slowly. This means that you can leave metal in RR 125 A for much longer than necessary with very little damage. The acid will attack bare metal slowly and will start the process of hydrogen embrittlement, so use the minimum etch time that removes all rust.

 Another unique advantage of RR 125 A is that it leaves a fine coating of iron phosphate behind. Iron phosphate prevents rust. However, the iron phosphate coating is not very thick and not durable. And hence additional protection is still required, for which we recommend the use of Loc Rust – Rust Preventive Oils.

Simply soak rusty parts in RR 125 A for few minutes to few hours depending upon the severity of rust and let them dry after rust removal.

It works best when used with Ultrasonic Machine and heated at 50°C

Main of Application:

1.Dipping (Time depends upon nature of rust)

2.Pre-clean the part to remove oil & dirt. Rinse with water. Immerse the part in

3.RR 125 A (Room Temp to 50°C) till rust is totally removed and

4.allow the part to dry. Then dip the part in Loc Rust 793 PU for longer storage

5.and protection of parts together with other BENZ VCI Packaging.

6.Deeply rusted parts may require longer time for soaking.

Awesome features

Removes Rust & Tarnish without abrasion or scrubbing

Ready to use product

No VOC’s, CFC,s, Silicon’s or heavy metals

Eliminates need for complicated equipment

Removes Medium to Heavy Rust



Easy to use