Ammo MIG-7400 Pigment Rust Set, Multicolour, Medium Review (2026)

Who this pigment set suits

This set targets armor, vehicle and machinery modelers who want to build up realistic rust and corrosion rather than a single flat rust color. Ammo by Mig's Pigment Rust Set pairs three separate rust tones so that fresh, recent corrosion can be layered next to older, darker rust in the same weathering pass, which better matches how real rust actually forms unevenly across a surface. Builders working on exhaust pipes, tank tracks, ship hulls or any subject with exposed, weathered metal are the clearest fit. Anyone whose next project calls mainly for dust, mud or soot effects instead of corrosion will want a different pigment set, since this one is built specifically around rust tones rather than general dirt.

What tones are in the set

According to Ammo by Mig's own listing, the set contains three jars: A.MIG-3006 Light Rust for fresh, recently exposed corrosion, A.MIG-3008 Track Rust for a darker tone suited to weathered tracks and running gear, and A.MIG-3005 Medium Rust for a tone between the two. Layering these three together, rather than relying on one rust color across an entire model, lets a builder start with a lighter tone in areas of newer wear and gradually darken toward more heavily corroded sections, producing more visual depth than a single-tone rust wash would. The pigments are enamel-based, which is consistent with how Ammo by Mig formulates most of its weathering pigment range.

Getting natural-looking results with layered pigments

Because these are loose pigments rather than a paint, they need to be fixed to the model with a binder, enamel thinner or dedicated pigment fixer to survive handling, and blending between the three included tones while the fixer is still workable is what produces a gradual, natural-looking transition rather than hard color bands. The site's own listed con about needing fixer and careful blending for natural results matches how pigment-based weathering generally works across brands, since dry pigment on its own tends to rub off and look flat without a binding step. Builders newer to pigment weathering may want to practice blending on a scrap piece or a hidden area first before committing to a highly visible panel.

How it compares to other rust and weathering pigment sets

Against Tamiya's Weathering Master sets, which use solid cake pigments with a built-in applicator, this Ammo by Mig set uses loose jarred pigment that gives more control over how much material is picked up and blended but requires separate brushes and a fixing step. Against Vallejo's Pigment FX Dust and Dirt set, which leans toward sand and dust tones, this Ammo by Mig set is focused specifically on rust and corrosion, so a builder wanting both dust and rust effects on the same vehicle would likely need to combine sets from different rust-focused and dust-focused lines rather than relying on one alone. Within Ammo by Mig's own catalog, single-tone pigments like Light Dust cost less but only cover one shade rather than the layered rust progression this three-jar set provides.

Verdict and who should pick a different set

For builders focused on corroded metal, exhausts, tracks or hulls, this three-tone rust set is a solid, targeted purchase, and its layered range supports the site's fit-for-the-job score of 9 out of 10 for that specific use case. It is a weaker fit for anyone whose weathering needs also include dust, mud or soot, since none of the three included jars cover those tones, meaning a second pigment set would still be needed for a fully weathered look. As with any loose pigment product, results depend heavily on how carefully the tones are blended and fixed rather than on the pigment alone.

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