Paint - VALLEJO Vallejo Ammo U-Rust Rust Reactor Type 2 15 ml for Weathering Effects

VALLEJO Vallejo Ammo U-Rust Rust Reactor Type 2 is a 15 ml liquid weathering agent formulated to produce controlled rust effects on scale models, miniatures and diorama elements. Designed to be used within the U-Rust system, this reagent interacts with applied pigments or preparatory layers to accelerate oxidation-like reactions, creating realistic rust bloom, streaking and surface irregularities. The compact bottle and measured volume make it suitable for fine-detail work and repeatable results during weathering sessions.

Advantages

This rust reactor provides predictable and controllable corrosion effects without the need for long natural aging. Its liquid consistency allows for precise application to seams, rivets and exposed metal surfaces. The product works well with compatible pigments and base layers to achieve varied rust textures from light staining to heavy pitting. Because it is formulated for hobby use, the reagent offers repeatable results and integrates into common model-painting workflows.

Suitable for

• Weathering scale models and military miniatures
• Creating rust streaks and bloom on diorama scenery
• Detailing vehicles, ships, industrial equipment and structures
• Small-area controlled rusting on resin, plastic and metal components

Key specifications

• Form: liquid reagent, 15 ml bottle
• Compatibility: designed for use with U-Rust system pigments and primer layers
• Application: fine-detail brush application or targeted drops for streaking
• Effect: accelerates rust-like reactions to create staining, streaks and surface texture
• Suitable substrates: painted plastic, resin, primed metal and similar hobby materials

How to use

Prepare the model surface by applying appropriate primer and the selected U-Rust pigments or preparatory washes according to the system instructions. Apply small amounts of the Rust Reactor Type 2 with a fine brush or dropper to the areas where rust is desired, such as joints, panel lines and exposed metal. Allow the product to react with the pigments; reaction time varies with layer thickness and ambient conditions. After the desired effect appears, neutralize or seal the area with a compatible varnish or fixer to preserve the result.

Usage recommendations

Perform tests on scrap material to determine reaction time and final appearance. Use in a well-ventilated area and avoid prolonged skin contact. Store the bottle tightly closed at room temperature away from direct sunlight. For best results, combine with Vallejo Ammo U-Rust pigments and follow stepwise application: primer, pigment layer, targeted reactor, then sealing coat.