ES Gel Coat & Resin Cup
This professional grade sprayer is a must for every fiberglass shop. This gun is ideal for spraying gelcoat into open molds. With tens of thousands in use all over the world, this gun is the standard for producing quality parts with a limited equipment budget. This gun will spray faster than conventional HVLP guns and will clean up in just a few minutes. It uses standard paper cups or our exclusive graduated poly-pro cup. The key is our unique vacuum generating nozzles that allow for lateral and downward spraying. The G100-6 comes complete with a gel coat nozzle, FN6 which works for most standard gel coat spraying, micron gage, nozzle cleaning brush, plastic cup liner, plastic and paper cups. With thousands being used all over the world, this is the standard for simple to use, simple to clean spraying of a wide variety of materials used in a composite shop. The G100 is our best selling gun because of it low price and versatility.
Professional Gelcoat & Resin Spraying Made Reliable
The ESG120 Dump Gun is engineered specifically for fiberglass professionals who demand consistent, high-volume material delivery when spraying gelcoat and polyester resin systems. Unlike standard automotive spray guns that struggle with high-viscosity materials, the ESG120 is built to handle the heavier body and thixotropic properties of marine gelcoats and laminating resins.
Whether you are spraying a boat hull, coating a mold, or laying down a tooling gelcoat layer, this dump gun delivers the durability and flow control required in demanding shop and yard environments.
Designed for Thick Materials
Gelcoat and polyester resin require specialized spray equipment due to their viscosity and filler content. The ESG120 dump gun is designed to:
- Handle heavy-bodied gelcoats
- Maintain consistent fan pattern under pressure
- Support high-output applications
- Reduce clogging compared to conventional spray guns
This makes it an excellent solution for marine repair facilities, boat manufacturers, mold builders, and composite fabricators.
Ideal for Marine & Composite Applications
The ESG120 is commonly used for:
- Boat hull and deck gelcoat application
- Mold gelcoating for part production
- Polyester resin spraying in open molding processes
- Fiberglass reinforcement projects
- Marine refinishing and restoration
Because of its dump-style design, operators can achieve a heavier, more uniform gelcoat build when compared to conventional HVLP-style spray guns.
Built for Shop Efficiency
Time is money in fiberglass production. The ESG120 allows technicians to move quickly while maintaining control over material output. When paired with a pressure pot or resin delivery system, it becomes a dependable solution for repetitive gelcoat spraying operations.
For best results:
- Use the correct tip size based on material viscosity
- Maintain proper air pressure for atomization
- Always strain gelcoat prior to loading
- Clean thoroughly after each use to extend gun life
Technical Support Available
Choosing the right spray equipment is critical to achieving proper gelcoat thickness, minimizing porosity, and ensuring a professional finish. Our technical team can help you dial in tip size, air pressure settings, and compatible gelcoat or resin systems for your specific application.
Need help setting up your spray system?
Call 321-638-1201 for technical guidance.
| Unit | Each |
|---|---|
| Manufacturer | ES Manufacturing |















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