Quick answer

Layer paints are not a replacement for Base paints, and they are not the same product in a different pot. Citadel designs Layer paints to be applied straight over Base paints, and over each other, without any mixing. If you are painting miniatures with layer paints, you are adding a second stage on top of an opaque foundation, not starting from scratch.

Why the two ranges exist at all

The Citadel range splits paints by job rather than by colour. Base paints give you the opaque foundation, and Layer paints are formulated to sit on top of that foundation and build up a richer, more natural finish. The catalog description is specific: Layer paints are designed to be used straight over Base paints and each other without any mixing. That is the entire premise of the layer step. You are not correcting a bad Base coat with a Layer pot, and you are not thinning a Base paint to fake a Layer paint. You are stacking thin, controlled passes to move the colour gradually.

Myth: Layer paints are just thinner Base paints

This is the most common assumption, and the catalog does not support it. The supplied product facts describe Layer paints as high quality acrylic paints intended to go straight over Base paints and over each other without mixing. Nothing in that description says they are a diluted version of a Base colour. The practical difference is how you use them: a Base pot is your opaque coverage step, and a Layer pot is your build-up step. Treating a Layer pot as a substitute Base coat usually means more passes and a patchier result, because you are asking a paint to do a job the range assigns elsewhere.

Myth: You need every Layer paint in the range

You do not. The honest answer to do you need layer paints is that it depends on the finish you want, not on a rule that every model must pass through a fixed number of pots. A workable approach is to pick Layer colours that sit close to the Base colours you already use, so each pass shifts the tone slightly instead of jumping. For a purple scheme, that means choosing a Layer purple that reads as a lighter or more saturated step above your Base purple rather than an unrelated colour. The range is a toolset, not a checklist, and the catalog gives no required number of layers.

How to run the layer step without overworking the model

Keep the passes thin and let each one dry before the next. Because Layer paints are designed to be applied straight over Base paints and each other without mixing, you do not need to pre-mix a transition colour in a palette. Build the shift by adding passes where the light would fall, and stop when the colour reads the way you want. If a pass looks too strong, you have added too much too quickly, not chosen the wrong pot. This is also why the 12ml pot size is worth noting: you are using small amounts per pass, so a single pot lasts through a lot of models.

Verdicts on common Layer paint claims

  • Layer paints replace Base paints: The catalog describes Layer paints as designed to be used straight over Base paints, not instead of them. The ranges are assigned different jobs. Verdict: false. Start with a Base coat, then layer.
  • You have to mix Layer paints to get a transition: Citadel states Layer paints are used straight over Base paints and each other without any mixing. The build-up comes from multiple passes, not from palette blending. Verdict: false. Thin passes do the work.
  • Every model needs a Layer step: Nothing in the supplied product facts requires a fixed number of layers. Whether you layer depends on the finish you are aiming for and how much contrast you want. Verdict: depends on your goal, not a rule.
  • A single Layer pot is a big commitment: Layer paints come in 12ml pots, and you use small amounts per pass because the paint goes on thin over an existing Base coat. Verdict: false. One pot covers a lot of models.

Layer paints worth starting with

  • Citadel Layer: Genestealer Purple: Citadel Layer: Genestealer Purple is a 12ml pot of high quality acrylic paint designed to be used straight over Citadel Base paints and over other Layer paints without mixing. A useful purple layer step if your Base purple is already down, because you can build the lighter tone without pre-mixing a transition colour.
  • Warhammer Colour: Layer - Kislev Flesh: Warhammer Colour: Layer - Kislev Flesh is a 12ml pot of high quality acrylic Layer paint intended to go straight over Warhammer Colour Base paints and each other without mixing. A practical choice for skin and flesh areas where you want a controlled build-up rather than one flat coat.
  • Warhammer Colour: Layer - Flash Gitz Yellow: Warhammer Colour: Layer - Flash Gitz Yellow is a 12ml pot of high quality acrylic Layer paint designed to be used straight over Warhammer Colour Base paints and each other without mixing. Yellow rewards thin passes over a solid Base, so this is a case where the layer step does visible work instead of just adding time.