Vacuum Degreasers and Aqueous Solutions
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Rust Preventive for Ferrous and Copper Metals

Madison Chemical’s Compound RP-99S, a versatile water-based rust preventive for use on ferrous and copper metals, is applied to previously cleaned parts by immersion, manual spray or recirculated spray methods.

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Madison Chemical’s Compound RP-99S, a versatile water-based rust preventive for use on ferrous and copper metals, is applied to previously cleaned parts by immersion, manual spray or recirculated spray methods. The rust preventive leaves a virtually invisible, dry-to-the touch film that provides short-term indoor storage protection for treated parts lasting up to four weeks or longer depending on concentration, the company says. The water-based compound contains no oil or solvent.

Compound RP-99S is safe for ferrous and copper alloys, when used as directed. For most applications, Compound RP-99S is used at 2 to 10 percent by volume in water varied from 70°F to 160°F. Heating the solution will lessen the time required for drying and may improve overall protection results. Treated parts should not be stacked or nested together until dry. Concentrations up to 15.0 percent may be used for longer rust protection time.

It is also used as a deburring compound in barrel and vibratory equipment for mass finishing operations. Compound RP-99S provides detergency to keep mass finishing media clean and remove light oil and metal chips from parts. It also promotes the sinking of suspended particles and floating of oil for increased tank life of recirculated solutions. Compound RP-99S is used at 1 to 5 percent by volume in water for mass finishing applications.
 

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