Automation systems for fiberglass, glass fiber, and gelcoat spraying

Date: 20/10/2025
PHOTO: Automation systems for fiberglass, glass fiber, and gelcoat spraying OF LESTA.

Lesta's automated systems for spraying fiberglass, glass fiber, and gelcoat achieve consistent, high-quality results, reducing production times and material waste. Thanks to advanced robotic solutions and dedicated software, companies can improve operator safety and optimise the entire production process.

Automation systems for fiberglass, glass fiber and gelcoat spraying are becoming increasingly popular in sectors such as marine manufacturing, swimming pools, hot tubs, and recreational vehicles.

In Lesta's case study on automated fiberglass, glass fiber and gelcoat spraying, we see how robotisation is transforming this production process. Thanks to Lesta robots, international leader in the design and production of automation systems for industrial painting, companies across different industries can ensure consistent coating quality, reduce production times, and improve operator safety.

Why choose automation for fiberglass, glass fiber and gelcoat spraying

Integrating automation into fiberglass, glass fiber, and gelcoat spraying processes significantly improves production efficiency. Robots reduce material waste and guarantee a uniform application of coatings, eliminating defects and the need for rework. At the same time, automation increases operator safety by limiting direct exposure to chemical substances during application.

Robotic systems for fiberglass and glass fiber spraying

Lesta robotic systems for fiberglass spraying typically feature an overhead gantry equipped with multiple robots mounted upside down. Programming is simplified through a self-learning mode: the operator performs the movements once, and the robot records and replicates them with high precision and repeatability, even on complex shapes such as hulls or large molded parts. Alternatively, spraying paths can be created offline using Lesta PAINT STUDIO 3.0 or by modifying previously recorded trajectories.

The fiberglass package in Lesta software

To further enhance spraying performance, Lesta has developed a dedicated plug-in that can be integrated into the Lesta LECROB Robot Manager software. This ‘fiberglass package’ introduces advanced features such as automatic washing position management, fiber dosing control via chopper, and precise regulation of gelcoat and resin valves. This ensures full process optimization and monitoring, resulting in a substantial increase in efficiency.

Industries using automation for gelcoat and fiberglass spraying

Lesta automation solutions for fiberglass and gelcoat spraying are used in a wide range of industrial sectors. In marine manufacturing, they allow the production of hulls and components with durable and uniform surface coatings. In the swimming pool and hot tub industry, they help achieve premium finishes, while in the RV sector they support the production of reinforced panels and composite structures. Manufacturers of prefabricated units, such as modular housing or horse shelters, also benefit from higher productivity and consistent quality.

Integration with other Lesta systems

A further advantage of Lesta spraying automation is the possibility of seamless integration with other Lesta solutions. The Lesta PRODUCTION MANAGER enables efficient job scheduling and quick recall of work programs. Handling carriages, available in both floor-mounted and overhead versions, extend the robot’s working area to increase flexibility. In addition, the Follow Me plug-in simplifies path recording by allowing the robot to directly follow the operator’s movements during programming.

Automation systems for fiberglass and gelcoat spraying are now a strategic investment for companies aiming to combine quality, efficiency, and safety. With dedicated software and seamlessly integrable solutions, Lesta robots deliver high performance across multiple production environments, providing a tangible and long-term competitive advantage.

Tag: Lesta