AX-033 ILM DS Surface Grey: Primer or Surface Prep?
By Newtype: Gundam Model Kits / Gunpla / Paint / Tools | Published: 2026-11-03
Category: Tips & Care
Is AX-033 ILM DS Surface Grey a primer or a surface prep coat? Learn how to use this screen-matched grey acrylic on model kits and Death Star tile bases.
Quick answer
AX-033 ILM DS Surface Grey is best treated as a surface prep and base color, not as a dedicated primer. Use it over a properly primed or clean, sanded surface when you want the light grey tone matched to the ILM Death Star tile.
Why the label says surface grey, not primer
The product name and catalog notes describe AX-033 as a surface grey matched from a screen-used ANH Death Star Tile. The catalog states that the two primary colors used have been added to the color inventory and that most ILM tiles appear to have been covered in the primer as their main color, a light grey. It also notes the brand believes it was a primer, but that is a belief, not a confirmed formulation.
That distinction matters for modelers: a paint named surface grey may be a color coat intended to replicate a primer look, not a chemically active primer. Treating it as a base color over an existing primer keeps your adhesion and sanding steps separate from the color match.
When to choose this grey over a standard primer
Choose AX-033 when the final look needs that specific light grey, such as Death Star tile bases or a studio-scale grey finish. A standard primer is formulated to grip bare plastic and show sanding scratches; this surface grey is the color you want to see at the end. Using one product for both jobs can work on simple builds, but it removes the safety net of a known primer layer on seams and heavy sanding.
If you are building a kit with visible seam repair or mixed materials, keep a dedicated primer in the workflow and reserve AX-033 for the color stage. If you are painting a flat tile base with minimal sanding, a clean surface and a thin coat of AX-033 may be enough.
AX-033 usage FAQ
- Do I need a separate primer under AX-033?
- Yes for most model kits. Apply a dedicated primer first, let it cure, then apply AX-033 as the color coat. On small, clean, minimally sanded parts you can test AX-033 directly, but check adhesion on a scrap piece before committing. If you sand through to bare plastic, re-prime that area before recoating with AX-033.
- How should I thin and apply it?
- The catalog does not list a thinner or ratio. Use an acrylic-compatible thinner from the same paint system and test a 1:1 or 2:1 thinner-to-paint ratio on scrap plastic. Build thin, even coats rather than one wet coat, and let each coat flash off before the next. Record the ratio that works for your airbrush so future batches match.
- Can I use it on Gunpla surface preparation?
- Use it after seam repair, sanding, and washing the parts. It is a color coat, so it will not hide deep scratches the way a high-build primer can. For Gunpla surface preparation, sand to your finest grit, clean the dust, prime, then apply AX-033 as the base grey. Inspect under a light before painting; fix scratches before the grey goes on.
- Is grey surfacer vs primer the same thing here?
- No. A surfacer or primer is designed to fill minor scratches and promote adhesion. AX-033 is a surface grey matched to a specific studio color. Use a surfacer or primer for prep, and AX-033 for the final grey tone. Keep one known primer and one color grey in your workflow to avoid confusion.
- What is the 30ml bottle best for?
- 30ml suits small to medium projects such as Death Star tile bases, detail parts, and touch-up work. For a full large-scale kit, plan coverage tests first or expect to use multiple bottles. Prime and paint a test spoon to estimate coverage before starting a large build.
Product facts
- AX-033 ILM DS Surface Grey 30ml: AX-033 ILM DS Surface Grey 30ml is a direct match from a screen-used ANH Death Star Tile, with the two primary colors added to the color inventory. This makes it a practical choice when you need the ILM tile grey for Death Star tile bases rather than a generic primer grey.
AX-033 ILM DS Surface Grey 30ml
