miniature spray guns
Iwata Mini Spray Guns

This page lists the Iwata mini spray guns that I feel are most useful to model making.  Iwata has the largest line of high quality miniature spray guns that consistently produce the smoothest of surface finishes.  The smaller spray guns are most applicable to small static scale modeling while the larger guns will prove more useful to builders of larger models such as RC airplanes or ships.  However, when looking at these numbers, keep in mind that these guns are fully adjustable, so you can always reduce the material flow and pattern size of a larger gun, but you can’t exceed a guns maximum material handling capability or pattern size.  Typically you want to choose the needle and nozzle size based on the material that you will be spraying.  Since you will be using the gun for painting base color coats and primer, you want a sufficiently large nozzle.  I usually find .60 to 1mm most useful.  This is not a complete list of Iwata spray guns, for a complete list of the entire Iwata line of spray guns you should consult the Iwata website.

Iwata RG3L
Iwata RG-3L
Model Nozzle Size Pattern Width (in.) PSI CFM
RG3L-2 0.6 1.4 36 1.1
RG3L-3 1.0 1.4 36 1.8

The RG-3 miniature, gravity/side-feed, airbrush/spray gun, is the updated version of the RG-2 with the same spray pattern.  The major difference is the integrated cartridge-style “air-valve” set. The air-valve set can be removed like a cartridge, serviced outside the gun and easily placed back into the gun body, making it more reliable and easier to maintain. The RG3L produces a precisely controlled well atomized round spray pattern. The side mounted gravity cup allows for a wide variety of spraying angles. The maximum spray pattern for the RG3L is about 2 1/2 inches. The low air consumption requirement makes it a good choice for modelers with limited air supply.

Iwata RG3L Parts Diagram
Iwata Eclipse G5
Iwata Eclipse G5
Model Nozzle Size Pattern Width (in.) PSI CFM
Eclipse G5 0.5 1/4 to 3 35 1.1

Although it looks like a mini spray gun, the fine precise spray pattern delivered by the Eclipse G5 allows it to perform more like an airbrush. The straight forward design makes it very easy to use and because of the low air consumption, it is an excellent choice for modelers with limited air supply. The 0.5 mm nozzle and needle works well for all modeling paints. The airbrush-like atomization of the G5 produces an ultra-smooth surface finish with the versatility of a fully adjustable fan pattern.

Iwata Eclipse G5 Manual
Iwata Eclipse G6
Iwata Eclipse G6
Model Nozzle Size Pattern Width (in.) PSI CFM
Eclipse G6 0.6 1/8 to 2.5 35 1.1

The Eclipse G6 is a unique airbrush. The Eclipse G6 airbrush looks like a miniature spray gun, but sprays and performs like a large airbrush with its 0.6-mm stainless-steel nozzle. It is equipped with a long tapered needle that ensures a smooth transition between fine and wide spray patterns. It utilizes a dual-purpose air cap and a fan adjustment valve that lets the airbrush spray a round or oval pattern. The low air consumption requirement makes it a good choice for modelers with limited air supply. From my experience, the G6 delivers the best atomized spray of all the Iwata mini spray guns. Small wonder it is a favorite among spray tan professionals.  If I had limited air supply resources, the Iwata Eclipse G6 would be my first choice for a mini spray gun.

Iwata Eclipse G6 Manual
Iwata LPH50
Iwata LPH50
Model Nozzle Size Pattern Width (in.) PSI CFM
LPH50-062G 0.6 2.4 13 1.8
LPH50-102G 1.0 3.9 13 1.8

The LPH50 is a fully adjustable mini HVLP spray gun.  It uses the same integrated cartridge-style “air-valve” set as the RG3.  The air-valve set can be removed like a cartridge, serviced outside the gun and easily placed back into the gun body, making it more reliable and easier to maintain.  The LPH50 also uses the same swivel side cup as the RG3.

Iwata LPH50 Parts Diagram
Iwata LPH80
Iwata LPH 80
Model Nozzle Size Pattern Width (in.) PSI CFM
LPH80-062G 0.6 2.4 13 1.8
LPH80-082G 0.8 3.2 13 1.8
LPH80-102G 1.0 3.9 13 1.8
Wide Pattern
Model Nozzle Size Pattern Width (in.) PSI CFM
LPH80-104G 1.0 5.1 14 2.1

The LPH80 is a fully adjustable, center post mini HVLP spray gun.  The LPH80 is offered in a large number of nozzle sizes as well as standard and wide pattern spray caps.  It uses an easy-to-service cartridge-style “air-valve” set, which can be serviced outside the gun and easily placed back into the gun body.  In my opinion, the LPH80 with 0.80 mm nozzle (LPH80-082G) is the best mini spray gun for modeling.  In my experience, the LPH80 series does a better job of atomization than the LPH50 series.  The only drawback for some modelers will be the increased demand for a good continuous airflow which is essential for proper performance for any HVLP gun.

Iwata LPH80 Parts Diagram
Iwata W101G
Iwata W101-101G
Model Nozzle Size Pattern Width (in.) PSI CFM
W101-101G 1.0 5.1 35 2.6

The Iwata W101G is a ¾ sized spray gun that I have found useful for really large models. So if you build large RC models, you might want to consider this gun.  While it is offered in a number of nozzle sizes, the only one that is practical for modeling is the 1 mm.  The W101G is not an HVLP gun, but it is designed to still deliver high transfer efficiency.  Air consumption is less than an HVLP gun of this nozzle size.  It uses the same side feed cup as the LPH50 and the larger size makes it more ergonomic than a mini spray gun.

Iwata W101G Parts Diagram
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