Rust Converter, Primer, Sealer (5L)

Key Features

✔ Water-Based, Low VOC & Environmentally Responsible
A water-based, Low VOC formulation offering an environmentally responsible alternative to traditional solvent-based rust treatments, with easy water clean-up while wet.

✔ Converts Rust to a Stable Protective Layer
Chemically reacts with existing rust to form a stable black protective surface, sealing and priming the steel ready for further coating.

✔ Helps Stop Further Corrosion
Neutralises existing rust and helps prevent further deterioration of the treated steel surface.

✔ Rust Converter, Primer & Sealer in One
Treats existing corrosion while leaving behind a sealed and primed surface ready for compatible protective coatings.

✔ No Need to Grind Back to Bare Metal
RCP150 can be applied directly to properly prepared rusted steel. Remove loose or flaking rust and scale, but complete rust removal or grinding back to bare metal is not required.

✔ Excellent Base for Protective Coatings
Compatible with a wide range of protective coating systems, including bituminous, acrylic, enamel and epoxy coatings.

✔ Fast Drying & Easy to Apply
Touch dry in approximately 15–30 minutes at 25°C and suitable for application by brush, roller, conventional spray or airless spray equipment.

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Ideal For

• Vehicle chassis, underbody and suspension restoration
• Trucks, trailers and transport equipment
• Mining and industrial equipment
• Agricultural machinery and equipment
• Marine and offshore equipment
• Structural steel, railings, fences and gates
• Tools and steel components
• Restoration and maintenance projects where complete rust removal is impractical

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How RCP150 Works

Rust forms when iron or steel reacts with oxygen and moisture, producing iron oxide.

ENDRUST® RCP150 chemically reacts with existing iron oxide (rust), converting it into a stable black protective surface. This conversion process neutralises the existing rust while creating a sealed and primed surface ready for further protection.

Unlike treatments that require the steel to be completely ground or sanded back to bare metal, RCP150 is designed to work with properly prepared surface rust still in place. Heavy loose rust, scale, dirt, grease and other contaminants should be removed before application.

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Compatible Protective Coatings

Once treated, RCP150 provides an excellent base for compatible protective coating systems, including:

• Bituminous rustproofing coatings
• Acrylic protective coatings
• Enamel paints
• Epoxy coatings

This makes RCP150 particularly useful as a preparation treatment before applying long-term automotive, industrial and heavy-duty corrosion protection systems.

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Application

RCP150 can be applied by:

• Brush – ideal for smaller areas, components and maintenance work
• Roller – suitable for larger flat surfaces
• Conventional spray gun – recommended tip size 2.2–2.5 mm (2.4 mm ideal)
• Airless spray equipment – ideal for larger areas and industrial applications

Apply one complete wet coat to the properly prepared rusted surface. The surface will turn black as the rust conversion reaction takes place.

RCP150 is typically touch dry in 15–30 minutes at 25°C and fully cured in approximately 24 hours at 25°C.

Clean equipment and spills with water immediately after use while the product is still wet.

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Surface Preparation

Remove heavy loose rust, flaking material, scale, dirt, grease and oil before treatment. A wire brush, scraper or suitable degreaser can be used as required.

There is no need to sand, grind or blast the surface completely back to bare metal — RCP150 is designed to react with rust remaining on the prepared steel surface.

The product may be applied to damp surfaces, but not wet surfaces.

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Water-Based, Low VOC Rust Treatment

ENDRUST® RCP150 combines effective rust conversion with the practical advantages of a water-based, Low VOC formulation.

Its Low VOC and environmentally responsible formulation, easy water clean-up and ability to treat rust without complete removal make it particularly suited to automotive, mining, industrial, agricultural, marine and general maintenance applications.

For professional users, RCP150 provides a practical preparation stage before applying long-term corrosion protection and rustproofing systems.

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Available Size

• 5 Litre Bulk Container

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Need Advice?

Not sure whether ENDRUST RCP150 is the right rust treatment for your application?

Contact the Endrust team for advice on rust conversion, surface preparation, corrosion protection and coating compatibility.

Shipping Weight	5 kg
Shipping Dimensions	12 × 19 × 30 cm