GHAD nozzle 0.5mm

The GA-40386 nozzle of 0.5 mm: the high coverage nozzle of the GHAD system

When the job requires covering large surfaces quickly and evenly, diameter matters. This original replacement nozzle Gaahleri with a diameter of 0.5 mm is specifically designed for the GHAD (Giraldez Hybrid Airbrush Design) airbrush and meets that need with mechanical precision: more paint flow, a wider spray pattern, and the ability to work with higher viscosity paints without losing atomisation.

Function and performance

The 0.5 mm diameter makes this nozzle the natural choice for work phases that require high paint volume: primers, colour backgrounds, base coats on large parts, and final varnishes (both matte and glossy). Unlike finer nozzles, the 0.5 mm allows paints with a higher pigment load or metallic particles to flow unobstructed, making it especially suitable for lacquers and metallics.

The spray is powerful and consistent. By maintaining the correct air pressure, the atomisation cone covers a wider strip with each pass, reducing application time and minimising the accumulation of uneven layers. The result: smooth surfaces, without an "orange peel" effect and with clean colour transitions.

Compatibility and installation

This nozzle is manufactured to fit hermetically and precisely into the body of the GHAD airbrush. As it is an original spare part, the sealing is exact: no air leaks, no play, and the 0.5 mm needle glides smoothly from the first use. Replacing the nozzle is a straightforward operation that requires no special tools, just the usual care when handling high-precision components.

• Diameter: 0.5 mm
• Compatibility: GHAD airbrush (Giraldez Hybrid Airbrush Design)
• Reference: GA-40386
• Applications: Primers, base coats, varnishes, and metallic paints with coarse particles
• Brand: Gaahleri

Ideal for…

In the field of static modelling and miniature and figure decoration, this 0.5 mm nozzle is particularly useful in situations such as:

• Applying primers on scale vehicles, figures, or dioramas before moving on to details with finer nozzles.
• Applying base coats broadly when working with paints like Vallejo, Kaleido, or Tamiya in their higher density versions.
• Covering large surfaces of static models or diorama pieces where application speed is as important as finish quality.
• Applying final protective varnishes that require a constant flow to achieve a perfectly levelled finish.

Considerations

With a 0.5 mm nozzle, coverage and speed are achieved, but it is not the choice for fine brushwork or precision shading: for that, the GHAD system has nozzles with smaller diameters. Cleaning the nozzle thoroughly after each session, especially when using varnishes or metallics, significantly prolongs its lifespan and maintains atomisation in optimal condition.

Frequently asked questions

Is this nozzle compatible with other airbrushes besides the GHAD?

No. The GA-40386 nozzle is designed and manufactured specifically for the Gaahleri GHAD airbrush. We do not guarantee its compatibility or proper sealing in other airbrush models or brands.

What type of paints can I use with a 0.5 mm nozzle?

With this diameter, you can comfortably work with higher viscosity paints: primers, lacquers, varnishes, and metallics with coarse particles. Standard acrylic paints from brands like Vallejo, Kaleido, or Tamiya also work without issue, although you can opt for finer nozzles if you seek greater precision.

Do I need to change the needle when changing the nozzle?

For optimal performance, the needle and nozzle should have the same diameter. If you switch to the 0.5 mm nozzle, ensure your needle is also 0.5 mm. Using a needle of a different diameter can affect sealing and atomisation quality.

How do I properly clean the nozzle after using varnishes or metallics?

After each session, carefully disassemble the nozzle and clean it with the appropriate solvent according to the paint used. For acrylics, use water with a few drops of brush cleaner. For enamels or lacquers, use the appropriate solvent. Avoid leaving dried paint inside: it can clog the passage and damage the component.

What air pressure is recommended for working with the 0.5 mm nozzle?

The optimal pressure depends on the viscosity of the paint and the type of application, but generally, you work with slightly lower pressures than with finer nozzles, as the larger diameter already facilitates flow. Always adjust based on the result you observe on a test surface before working on the final piece.

The Gaahleri GA-40386 nozzle is a 0.5 mm replacement tip for the GHAD (Giraldez Hybrid Airbrush Design) airbrush, offering high-flow atomisation for priming, base coating and varnishing in scale modelling, miniature painting and diorama work. As an original spare part, it ensures a perfect seal and smooth needle action. A must-have accessory for modellers looking to speed up coverage while maintaining an even, professional finish with thicker paints and metallics.