Place of Origin:
Beijing, China (Mainland)
Brand Name:
gelcoat/ rsesin
gel coat/ resin spray gun
Cup Volume:
10L, 40L or customized
gelcoat spray gun:
resin spray gun
catalyst/gelcoat spray gun:
two-component spray gun
Packaging Details

Product name: External mixed gelcoat spray gun

The external mixed gelcoat spray gun is a lightweight, hand held, plural component spray gun for spraying application of two-component materials, such as gel coats or polyesters. The “base” resin is “cured” by addition of catalyst in a required ratio. The externally mixed gelcoat spray gun needn’t mixed the gelcoat and catalyst in advance, they will be automatic mixed when you spray it. So you needn’t afraid the problem of gelcoat curing like a inner mixed spray gun. It can be used to be spray the spray resin or other spraying liquid.


1. Easy operation
The spray gun is operated in a conventional manner. The trigger action starts and stops, the spray of both materials simultaneously.
2. Easy clean
The two materials exit separately as an atomized spray from their respective nozzles and impinge on each other at the point of approximately six inches in front of the gun (resin) nozzle. Here, the resulting turbulence insures intimate mixing.
3. Accurate adjustment of catalyst percentage ensures the parts cured at the desired rate.
The catalyst is supplied from a siphon container assembly, mounted directly on the gun. Air diverted from the gun handle passes through the air adjusting valve to the nozzle body providing the siphon action and serving as atomizing air for the catalyst. Screw the controllers of fluid and air to adjust the flow of catalyst.

4. Auto mix. The pneumatic mixer head ensures intimate mixing.
5. Less material waste.
6. Large volume gel coat spraying

Catalyst Range: 0.5%~5%
Fluid Hose: ID8mm OD 11.5mm

Length of Fluid Hose: 6 m
Nozzle Dia.: 1.8mm

Catalyst Cup Volume: 135ML

Rotary Speed of Drum Mixer: Adjustable

Pot Pressure: 0.05~0.4MPa

Pot Volume:10L, 40L, Diaphragm pump; another size can be customized.

Air Pressure: 0.6~0.8MPa

The external mixed gelcoat spray gun with 10L pot

The external mixed gelcoat spray gun with 40L pot

The diaphragm pump external mixed gelcoat spray gun (Best sale and New product)


The inner mixed gelcoat/resin spraying gun

The gelcoat spraying machine

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