TAMXF4 - Tamiya - Flat Yellow Green Acrylic - 10mL Bottle

TAMXF4 - Tamiya - Flat Yellow Green Acrylic - 10mL Bottle

Tamiya XF-4 Flat Yellow Green is a vivid, acidic yellow-green that covers two of the most important utility applications in WWII aviation modelling: Zinc Chromate Yellow — the standard anti-corrosion primer used in USAAF and US Navy aircraft wheel bays, structural members, and interior surfaces — and as the primary component in Zinc Chromate Green when mixed with XF-5 Flat Green (2:1 ratio). Tamiya's original colour guide designates XF-4 as "Interior of the plane" for both US Navy and US Army aircraft, making it one of the most-referenced interior colours in Tamiya kit instructions. It is also used as a toning component for Nakajima cockpit interiors mixed with XF-62 Olive Drab, and serves as a general mixing yellow-green for vegetation, camouflage, and colour modulation across AFV, aircraft, and figure subjects. Its strong chromatic character means a small quantity goes a long way as a mixing agent, and it should be used sparingly when blending into other colours.

Tamiya Acrylic paints are a hybrid acrylic formula built on water-soluble resin — they can be thinned with water, isopropyl alcohol, or lacquer thinner, and clean up easily with water before curing. When thinned with Tamiya Lacquer Thinner, the paint lays down faster, dries harder, and bonds more aggressively to the substrate. The hybrid resin chemistry means the paint film remains slightly soluble after initial drying — subsequent brush strokes can reactivate and lift the layer below if applied without restraint. For this reason, airbrushing is strongly recommended for large surface coverage. Brush painting is workable for detail and touch-up work, but requires a gentle, deliberate stroke and a fully cured base layer. See our Tamiya Acrylic vs. Enamel vs. Lacquer guide for a full breakdown of paint type differences.

• Zinc Chromate Yellow (straight XF-4) — the bright yellow chromate primer used on wheel bays, engine bays, and structural interior members of USAAF fighters and bombers including the P-38 Lightning, P-47 Thunderbolt, P-51 Mustang, B-17 Flying Fortress, and B-24 Liberator; also applied to wheel bay interiors and landing gear legs of early-war Grumman F4F Wildcats, Douglas SBD Dauntlesses, and Grumman TBF Avengers before Interior Green became the standard cockpit colour
• Zinc Chromate Green (XF-4 + XF-5, 2:1) — the green-tinted chromate primer used in USAAF and US Navy aircraft cockpit interior framing, structural ribs, and wheel bay detail work; Tamiya's own kit instructions for the F4U Corsair and F4F Wildcat call out this exact mix for cockpit interior surfaces; the green variant was the more common application in production aircraft from 1942 onward
• Nakajima cockpit colour component — mixed with XF-62 Olive Drab (1 part XF-4 + 3 parts XF-62) to produce the distinctive Nakajima factory cockpit colour used on Nakajima-built A6M Zeros, Ki-43 Hayabusas, Ki-44 Shokis, and Ki-84 Hayates; the Nakajima cockpit green is a warm, olive-yellow-green distinct from the more neutral Mitsubishi interior colour
• Bell P-39/P-400 Airacobra interior — bronze-green cockpit interior on the Airacobra used by USAAF units in the Pacific (5th Air Force, New Guinea and Guadalcanal, 1942–43) and the Soviet Air Force (VVS) on the Eastern Front, where the P-39 was the most numerous Lend-Lease fighter type; 1:1 mix of XF-4 and XF-5 approximates the Bell bronze-green formula
• USAAF wheel bay detail painting — XF-4 used straight on the bright yellow chromate visible in open wheel bays, gear doors, and structural ribs of early-war USAAF aircraft before mass-production standardisation shifted many manufacturers toward the green chromate variant; particularly appropriate for pre-1943 P-40 Warhawk, P-38 Lightning early variants, and B-25 Mitchell wheel bays
• General mixing yellow-green — added in small quantities to XF-61 Dark Green and XF-58 Olive Green to push these colours toward a lighter, more spring-green tone for vegetation diorama work, and used to brighten and warm IJA and IJN camouflage greens when scale-effect lightening is required
• IJN aircraft interior component — XF-4 contributes to mixing recipes for various IJN interior colours across Kawanishi, Kawasaki, and Kugisho-built aircraft where the factory cockpit finish leaned toward a warm yellow-green rather than the grey or green shades used by Mitsubishi and Nakajima

For full Tamiya paint colour references and modelling compatibility charts, visit our Tamiya Paint Colour Chart — Complete Guide for Scale Modellers.

Thin and airbrush with Tamiya Lacquer Thinner, Mr. Color Thinner, or Mr. Color Leveling Thinner.

• 10ml glass jar
• Part of the Tamiya Acrylic paint range