Vallejo Diorama FX Ground Textures - Rough Grey Pumice 200 ml Review (2026)

What the paste is made of

Vallejo describes this product as a heavy paste combining resin with natural pumice stone, producing a rough grey texture aimed at surface building on dioramas, including irregular terrain, reliefs and raised peaks. The natural pumice content is what gives the finish its coarse, stone-like grain once it dries, as opposed to smoother basing pastes that use finer fillers. Because it is described as a heavy paste rather than a thin liquid texture medium, it holds its shape well when applied with a palette knife or similar tool, making it suited to building up raised terrain features rather than just a thin flat texture coat across a base.

Where the grey rubble look fits

The grey pumice color is aimed at rocky, rubble or ruined ground themes, which covers a wide range of settings from cracked pavement and collapsed masonry to natural rocky outcrops. This is a more neutral, less saturated base color than the brown earth version in the same Diorama FX line, which suits urban ruin, industrial or stone-heavy scenes better than it suits a natural dirt or grass base. Painters typically apply a wash or drybrush over the dried grey pumice to bring out the texture's highs and lows, since the raw grey finish alone reads as fairly flat and uniform without additional color work on top.

Drying and working time

As a water based acrylic product, drying time depends on how thick the paste is applied and on ambient humidity, and can range from about 45 minutes for a thin layer up to several hours or longer for a thick build-up, based on Vallejo's own guidance for the Diorama Effects line. This gives some working time to shape the texture with a tool before it sets, which matters for anyone trying to sculpt specific rock formations or rubble piles rather than just spreading a flat layer. Builders working on time-sensitive projects should plan for the paste to need real drying time before painting, particularly where it has been applied thickly to build up raised terrain.

Compatibility with paints and other texture products

Vallejo states the Diorama FX line is acrylic and water based, meaning it can be mixed directly with other diorama texture products in the same range as well as with standard acrylic paints such as Model Color, Game Color and Model Air, without compatibility issues. This makes it straightforward to tint the paste before application if a painter wants a different base tone under the natural grey pumice color, or to blend it with another texture product from the line to create a custom look. Because it dries to a permanent, resistant finish once fully cured, it can be worked into an existing base alongside other basing materials like sand or static grass without breaking down later.

Scale considerations for smaller bases

The coarse pumice grain that makes this product effective for larger dioramas and terrain pieces can be disproportionately large on small standard infantry miniature bases, where the texture may read as oversized rubble rather than fine ground detail at that scale. Painters working on 25 to 32 millimeter round or oval bases should consider applying the paste sparingly and in smaller clumps rather than as a full even coat, to avoid the texture overwhelming the model standing on it. For larger vehicle bases, display dioramas or terrain pieces where more surface area is available, the same coarse grain reads as appropriately scaled rubble rather than looking out of proportion.

Frequently asked questions