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Types of Spray Gun Nozzle Sizes and Their Uses

The nozzle, located at the end of a paint sprayer's pipe, comes in various sizes that are specific to the spray gun's type and model. hitto also have the Airless Spray Gun with Nozzle and the extension rod.

The use of a paint sprayer facilitates the efficient application of coatings on surfaces that require paint protection. The following are common spray gun nozzle sizes found in engineering workshops:

• 0.8 mm – 1.0 mm: Best for applying thin paints, such as motorcycle, acrylic, and airbrush paint.
• 1.2 mm – 1.4 mm:Suitable for general-purpose painting with car paint, enamel, and metallic paint.
• 1.6 mm – 1.8 mm:Best for thick paints like primers and protective metal coatings.
• 0 mm – 2.5 mm:Designed for extremely viscous coatings, including marine paint and protective coatings for building materials.

More than 2.5 mm: Used for the thickest materials, such as industrial mastics, heavy sealants, and high-build primers. It's important to remember that selecting the right nozzle size is crucial for optimal results. A nozzle that's too small or too large can affect the quality and thickness of the paint layer. Therefore, it's best to choose a nozzle size that's appropriate for the type of paint and your desired application. Hitto Airless Spray Gun Nozzle also have for size 517(0.45mm), 519(0.50mm) & 621 (0.55) & 625(0.64mm).

Nozzle 0.8 mm – 1.0 mm

The 0.8 mm – 1.0 mm nozzle size is ideal for thin paints (e.g., acrylic, airbrush), providing a fine spray for detailed work on small surfaces like models.

For larger surfaces or thicker coatings, a larger nozzle is recommended to achieve a more even finish and reduce application time. While this small size can handle general paints like enamel on a small scale, it is not efficient for bigger projects.

Nozzle 1.2 mm – 1.4 mm

For General Purpose & Automotive Work: Use a 1.2 mm – 1.4 mm nozzle. It handles common paints like enamel and metallic, producing an even, fine spray ideal for large surfaces such as automotive panels.

Why it's preferred: This size offers the ideal compromise between coverage speed and finish quality, making it the industry standard in auto body shops for efficient, high-standard repairs.

Nozzle 1.6 mm – 1.8 mm

A nozzle with a diameter of 1.6 mm – 1.8 mm is typically suitable for thicker paint applications. For example, for painting large vehicles like buses or trucks, and even for metal. This nozzle size can produce a fairly large and powerful spray, making it suitable for applying paint to larger and thicker surfaces.

Additionally, nozzles with a 1.6 mm – 1.8 mm diameter can also be used for applying paint to smaller or more detailed surfaces, especially if you want a thicker, more even coat.

However, it's best to use a smaller nozzle size if you want to apply paint to smaller or thinner surfaces. This can help produce a smoother and more precise coat.

Nozzle 2.0 mm – 2.5 mm

Nozzles with a diameter of 2.0 mm – 2.5 mm are typically suitable for very thick paint applications, such as industrial paint or paint for large surfaces like walls or roofs.

This nozzle size can produce a very large and powerful spray, making it suitable for applying paint to very large and thick surfaces.

When using a spray gun nozzle, it's important to choose the appropriate size for the type of paint and the desired application. Adjusting the air pressure to achieve the correct spray and optimal results is crucial.

Nozzle Size More Than 2.5 mm

For large-scale/industrial use: Use a nozzle larger than 2.5 mm. It handles high-viscosity coatings like industrial and marine paints, providing a powerful, high-volume spray for efficient coverage on large surfaces such as walls, roofs, and structural components.

Not for detailed work: The intense, uncontrolled spray from these nozzles makes them unsuitable for small areas. Always select a smaller nozzle size for detailed or confined surfaces to maintain precision.