Acrylic Wash paint VALLEJO Vallejo Ammo Dust Wash (wash for weathering and shading)

VALLEJO Vallejo Ammo Dust Wash is an acrylic wash formulated to simulate dust accumulation and subtle shading on scale models and miniatures. The water-based formula is designed to flow into panel lines, recesses and textured surfaces to enhance detail definition and create realistic dusty finishes on painted kits. Compatible with common modelling materials, this wash integrates into painting workflows for weathering, tonal variation and surface depth without masking underlying paintwork when used as directed.

Advantages

This acrylic wash provides controlled flow and capillary action to reach fine crevices and accentuate panel lines. Its pigmentation produces natural dust tones and soft shading that help define contours without harsh edges. Being water-based, it is easy to dilute, clean up and adjust during application. The product is formulated to adhere to plastic, resin and metal model surfaces when applied over cured paint layers or suitable primers.

Suitable for

• Weathering scale aircraft, armor and vehicles to simulate dusty operational wear
• Shading recessed details on miniatures and figures to improve visual depth
• Accentuating panel lines, rivets and textured surfaces on plastic and resin kits
• Creating subtle dust streaks and tonal variation on diorama elements

Key specifications

• Formulation: water-based acrylic wash designed for weathering and shading
• Finish: matte, natural dust tones suitable for dusty effects
• Compatibility: suitable for use on painted plastic, resin and metal model surfaces
• Application method: brush-on wash; can be thinned with water or compatible thinner to adjust flow

How to use

Apply the wash with a fine brush to panel lines, recesses and areas where dust would naturally collect. Allow the wash to flow into low points and wait a short time for pigment to settle. Remove excess with a damp brush or cotton swab by feathering outward to achieve the desired level of softness and blending. For more subtle results, dilute the wash with small amounts of water and test on a spare surface before treating the model. Allow the wash to fully dry before applying additional weathering layers or protective varnish.

Usage recommendations

Use over fully cured paint or primer layers and test compatibility on a small area first. Work in thin layers, building effect gradually to avoid overpowering base colors. Clean brushes and tools with water immediately after use. Store the container tightly closed in a cool, dry place away from direct sunlight.