RLM 84 Graublau

RLM 84 Graublau: a late-war blue-grey from the RLM list

RLM 84 Graublau is a blue-grey associated with the final period of the war. It does not appear in every RLM list, and its use and exact tone are still to be confirmed, so treat our shade as an approximation based on published interpretations rather than a definitive match. Koloi Aqua is our water-based matte acrylic, formulated for the airbrush. Offered for modellers who want to explore late-war undersides and the variations of the last months, alongside RLM 76, 81, 82 and 83 from the same range. Check your references for the specific aircraft before committing to a scheme.

The problem with matte finishes

A matte finish hides nothing: fingerprints, uneven coats and gloss patches all show. Spray light, even coats, avoid handling the parts, and finish with a matte or satin clear to keep the sheen consistent.

How to apply

1. Shake the bottle for at least 60 seconds.
2. Prime with a grey primer and let it dry fully.
3. Airbrush straight from the bottle, no thinning needed. Use a 0.2–0.4 mm nozzle at around 20 PSI (1.4 bar) and apply light, cross-hatched coats, letting each one flash off before the next.
4. Let the paint cure overnight before masking, decals or weathering.
5. Seal with a water-based clear: matte or satin to keep the military finish, gloss under decals.
6. Clean the airbrush with water before the paint dries.

Why modelers choose Koloi Aqua

• Ready to spray: no guessing thinning ratios, the same result from every bottle
• Cleans up with water, so there are no strong solvent fumes at the bench
• Fine pigment grind for 1:8 to 1:72 scales, so panel lines and detail stay crisp
• One system: primer, colour and clear designed to work together

Shelf life

Estimated shelf life of more than 12 months when stored tightly closed between +10 °C and +28 °C, away from frost and direct sunlight. Shake well before use; if the paint has thickened or separated and does not remix, do not use it.

💡 Need a colour we don’t list? Our colour lab matches RAL, RLM, FS and BS paint codes on request.

The on-screen image is indicative: historical military colours varied between factories, batches and weathering, and the final tone depends on the primer, the number of coats and the clear coat. Keep out of reach of children. Safety Data Sheet available on request.