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Speed Meets Consistency in High Volume Fiberglass Production

Our chopper gun process delivers fast and uniform fiberglass application, ideal for large parts that require strength, full coverage, and cost efficiency.

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Efficient Coverage and Consistent Strength for Large-Scale Parts

What Is It

Chopper gun application is a spray-up process where chopped fiberglass strands are combined with resin and sprayed onto a mold. This method is ideal for large parts requiring uniform coverage and cost-effective production. It’s commonly used in the RV, marine, and industrial markets.

How It’s Used

At M&W Fiberglass, our team uses chopper gun technology with precision to ensure consistent material distribution and controlled thickness. We use this technique when speed, coverage, and structural integrity are key.

Benefits

Tailored Strength & Durability

Our chopper gun process provides precise control over spray angles, resin-to-glass ratios, and strand lengths, allowing us to tailor each part’s structural properties to the project’s exact requirements. By adjusting these variables, we can ensure the finished part has the necessary strength, flexibility, and aesthetic quality for its intended application. Whether the priority is load-bearing performance, weather resistance, or a smooth, consistent finish, our approach ensures long-term durability in demanding conditions. Every part is engineered to meet or exceed both mechanical and visual expectations, resulting in products that perform reliably over years of service.

Efficient for Prototypes & Production

With the chopper gun method, we can efficiently transition from one-off prototypes to large production runs without compromising quality or schedule. The process is cost-effective because it minimizes material waste while maximizing throughput. Rapid setup allows quick turnaround for prototype evaluation, enabling fast design refinements before scaling to full production. In high-volume manufacturing, the method’s repeatability ensures every part maintains precise specifications. The ability to balance speed with quality control means we can meet tight deadlines while keeping projects within budget, offering a dependable solution for both short-term testing and long-term production needs.

On-Site Flexibility

Chopper gun layups streamline fiberglass production by reducing labor demands and increasing throughput, making them ideal for high-volume manufacturing. Skilled technicians can adjust fiber and resin application in real time, adapting to part geometry, climate conditions, and performance requirements. This flexibility ensures consistent quality, cost-efficiency, and reliable results across a wide range of components and industries.

Material Efficiency & Sustainability

Calibrated chopper gun systems minimize overspray and guarantee complete wet-out of fibers, ensuring every strand is fully saturated. This precision maximizes material efficiency, reduces waste, and supports environmental sustainability goals while maintaining consistent quality across every part produced.

Versatile Applications

The chopper gun process is ideal for producing a wide range of fiberglass components, from large, flat panels to complex curves found in hulls, tanks, and custom enclosures. Its adaptability allows us to serve industries such as marine, transportation, construction, and industrial manufacturing with consistent results. The method works equally well for both small and large-scale parts, maintaining accuracy in shape, thickness, and material distribution. This versatility means we can meet varied performance demands, whether a component needs to handle environmental exposure, chemical resistance, or mechanical stress, all while delivering consistent quality across different product types and design requirements.

Enhanced Performance

We enhance part performance by strategically layering glass fibers and integrating core materials directly during the chopper gun layup. This allows us to tailor the mechanical properties – such as stiffness, impact resistance, and weight – exactly to the project’s requirements. Core materials can be added for weight reduction without compromising structural integrity, while reinforcement layers can strengthen high-stress areas. This customization ensures that the finished part performs beyond baseline requirements, handling environmental challenges and mechanical loads with ease. By combining precision material placement with expert craftsmanship, we produce fiberglass components that achieve optimal performance for even the most demanding applications.

Labor & Time Savings

The chopper gun process significantly reduces manual labor compared to traditional hand layup techniques, allowing for faster production cycles and lower overall costs. Automated fiber chopping and spraying ensure even material distribution, eliminating the need for extensive manual placement while maintaining high-quality standards. For high-volume manufacturing, this efficiency translates into faster order fulfillment without sacrificing strength or finish. Reduced handling also lowers the risk of inconsistencies, making it possible to maintain precise part-to-part uniformity. This approach not only accelerates project timelines but also delivers cost savings, making it an effective and reliable method for large-scale fiberglass production.

Why We Use It

Chopper gun fabrication at M&W doesn’t mean sacrificing visual appeal. We take pride in delivering a professional finish that meets cosmetic standards, often applying gel coats or secondary treatments as part of the process. The result is a finished product that performs and presents well.
Because the chopper gun process can accommodate various mold types and production scales, it offers flexibility that few other methods can match. Whether your part needs to withstand saltwater, chemicals, vibration, or UV exposure, M&W tailors our resin systems and chop strategies to match the operating environment.

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